Verses showing importance of apologetics:
“But in your hearts revere Christ as Lord. Always be prepared to give an answer to everyone who asks you to give the reason for the hope that you have. But do this with gentleness and respect, keeping a clear conscience, so that those who speak maliciously against your good behavior in Christ may be ashamed of their slander.”
1 Peter 3:15
“For the time will come when people will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear. They will turn their ears away from the truth and turn aside to myths.”
2 Timothy 4:3-4
“Paul entered the synagogue and spoke boldly there for three months, arguing persuasively about the kingdom of God. But some of them became obstinate; they refused to believe and publicly maligned the Way. So Paul left them. He took the disciples with him and had discussions daily in the lecture hall of Tyrannus. This went on for two years so that all the Jews and Greeks who lived in the province of Asia heard the word of the Lord.”
Acts 19:8-10
“When Apollos wanted to go to Achaia, the brothers and sisters encouraged him and wrote to the disciples there to welcome him. When he arrived, he was a great help to those who by grace had believed. For he vigorously refuted his Jewish opponents in public debate, proving from the Scriptures that Jesus was the Messiah.”
Acts 18:27-28
“We demolish arguments and every pretension that sets itself up against the knowledge of God, and we take captive every thought to make it obedient to Christ.”
2 Corinthians 10:5
“…I am put here for the defense of the gospel.”
Philippians 1:16
“Be wise in the way you act toward outsiders; make the most of every opportunity. Let your conversation be always full of grace, seasoned with salt, so that you may know how to answer everyone.”
Colossians 4:5-6
“For the message of the cross is foolishness to those who are perishing, but to us who are being saved it is the power of God. For it is written: ‘I will destroy the wisdom of the wise; the intelligence of the intelligent I will frustrate’.”
1 Corinthians 1:18-19
“Where is the wise person? Where is the teacher of the law? Where is the philosopher of this age? Has not God made foolish the wisdom of the world? For since in the wisdom of God the world through its wisdom did not know him, God was pleased through the foolishness of what was preached to save those who believe. Jews demand signs and Greeks look for wisdom, but we preach Christ crucified: a stumbling block to Jews and foolishness to Gentiles, but to those whom God has called, both Jews and Greeks, Christ the power of God and the wisdom of God. For the foolishness of God is wiser than human wisdom, and the weakness of God is stronger than human strength.”
1 Corinthians 1:20-25
“He must hold firmly to the trustworthy message as it has been taught so that he can encourage others by sound doctrine and refute those who oppose it.”
Titus 1:9
“Dear friends, although I was very eager to write to you about the salvation we share, I felt compelled to write and urge you to contend for the faith that was once for all entrusted to God’s holy people.”
Jude 3
“So whether you eat or drink or whatever you do, do it all for the glory of God. Do not cause anyone to stumble, whether Jews, Greeks or the church of God – even as I try to please everyone in every way. For I am not seeking my own good but the good of many, so that they may be saved.”
1 Corinthians 10:31-33
Verses showing threat of false teaching:
“Jesus spoke to them, ‘Isn’t this the reason why you’re mistaken: you don’t know the Scriptures or the power of God’?”
Mark 12:24
“For false messiahs and false prophets will appear and perform great signs and wonders to deceive, if possible, even the elect.”
Matthew 24:24
“See to it that no one takes you captive through hollow and deceptive philosophy, which depends on human tradition and the elemental spiritual forces of this world rather than on Christ.”
Colossians 2:8
“Keep watch over yourselves and all the flock of which the Holy Spirit has made you overseers. Be shepherds of the church of God, which He bought with His own blood. I know that after I leave, savage wolves will come in among you and will not spare the flock. Even from your own number men will arise and distort the truth in order to draw away disciples after them.”
Acts 20:28-30
“Bear in mind that our Lord’s patience means salvation, just as our dear brother Paul also wrote you with the wisdom that God gave him. He writes the same way in all his letters, speaking in them of these matters. His letters contain some things that are hard to understand, which ignorant and unstable people distort, as they do the other Scriptures, to their own destruction. Therefore, dear friends, since you have been forewarned, be on your guard so that you may not be carried away by the error of the lawless and fall from your secure position. But grow in the grace and knowledge of our Lord and Savior Jesus Christ. To Him be glory both now and forever! Amen.”
2 Peter 3:15-18
“Dear friends, do not believe every spirit, but test the spirits to see whether they are from God, because many false prophets have gone out into the world. This is how you can recognize the Spirit of God: Every spirit that acknowledges that Jesus Christ has come in the flesh is from God, but every spirit that does not acknowledge Jesus is not from God. This is the spirit of the antichrist, which you have heard is coming and even now is already in the world. You, dear children, are from God and have overcome them, because the One who is in you is greater than the one who is in the world. They are from the world and therefore speak from the viewpoint of the world, and the world listens to them. We are from God, and whoever knows God listens to us; but whoever is not from God does not listen to us. This is how we recognize the Spirit of truth and the spirit of falsehood.”
1 John 4:1-6
“So I will always remind you of these things, even though you know them and are firmly established in the truth you now have. I think it is right to refresh your memory as long as I live in the tent of this body, because I know that I will soon put it aside, as our Lord Jesus Christ has made clear to me. And I will make every effort to see that after my departure you will always be able to remember these things. For we did not follow cleverly devised stories when we told you about the coming of our Lord Jesus Christ in power, but we were eyewitnesses of His majesty. He received honor and glory from God the Father when the voice came to Him from the Majestic Glory, saying, ‘This is my Son, whom I love; with Him I am well pleased.’ We ourselves heard this voice that came from heaven when we were with Him on the sacred mountain. We also have the prophetic message as something completely reliable, and you will do well to pay attention to it, as to a light shining in a dark place, until the day dawns and the morning star rises in your hearts. Above all, you must understand that no prophecy of Scripture came about by the prophet’s own interpretation of things. For prophecy never had its origin in the human will, but prophets, though human, spoke from God as they were carried along by the Holy Spirit.”
2 Peter 1:12-21
“For there are many rebellious people, full of meaningless talk and deception, especially those of the circumcision group. They must be silenced, because they are disrupting whole households by teaching things they ought not to teach – and that for the sake of dishonest gain. One of Crete’s own prophets has said it: ‘Cretans are always liars, evil brutes, lazy gluttons.’ This saying is true. Therefore rebuke them sharply, so that they will be sound in the faith and will pay no attention to Jewish myths or to the merely human commands of those who reject the truth. To the pure, all things are pure, but to those who are corrupted and do not believe, nothing is pure. In fact, both their minds and consciences are corrupted. They claim to know God, but by their actions they deny Him. They are detestable, disobedient and unfit for doing anything good.”
Titus 1:1-16
“Then Jesus said to the crowds and to His disciples: ‘The teachers of the law and the Pharisees sit in Moses’ seat. So you must be careful to do everything they tell you. But do not do what they do, for they do not practice what they preach. They tie up heavy, cumbersome loads and put them on other people’s shoulders, but they themselves are not willing to lift a finger to move them. Everything they do is done for people to see: They make their phylacteries wide and the tassels on their garments long; they love the place of honor at banquets and the most important seats in the synagogues; they love to be greeted with respect in the marketplaces and to be called ‘Rabbi’ by others. But you are not to be called ‘Rabbi,’ for you have one Teacher, and you are all brothers. And do not call anyone on earth ‘father,’ for you have one Father, and He is in heaven. Nor are you to be called instructors, for you have one Instructor, the Messiah. The greatest among you will be your servant. For those who exalt themselves will be humbled, and those who humble themselves will be exalted. Woe to you, teachers of the law and Pharisees, you hypocrites! You shut the door of the kingdom of heaven in people’s faces. You yourselves do not enter, nor will you let those enter who are trying to. Woe to you, teachers of the law and Pharisees, you hypocrites! You travel over land and sea to win a single convert, and when you have succeeded, you make them twice as much a child of hell as you are. Woe to you, blind guides! You say, ‘If anyone swears by the temple, it means nothing; but anyone who swears by the gold of the temple is bound by that oath.’ You blind fools! Which is greater: the gold, or the temple that makes the gold sacred? You also say, ‘If anyone swears by the altar, it means nothing; but anyone who swears by the gift on the altar is bound by that oath.’ You blind men! Which is greater: the gift, or the altar that makes the gift sacred? Therefore, anyone who swears by the altar swears by it and by everything on it. And anyone who swears by the temple swears by it and by the one who dwells in it. And anyone who swears by heaven swears by God’s throne and by the One who sits on it. Woe to you, teachers of the law and Pharisees, you hypocrites! You give a tenth of your spices – mint, dill and cumin. But you have neglected the more important matters of the law – justice, mercy and faithfulness. You should have practiced the latter, without neglecting the former. You blind guides! You strain out a gnat but swallow a camel. Woe to you, teachers of the law and Pharisees, you hypocrites! You clean the outside of the cup and dish, but inside they are full of greed and self-indulgence. Blind Pharisee! First clean the inside of the cup and dish, and then the outside also will be clean. Woe to you, teachers of the law and Pharisees, you hypocrites! You are like whitewashed tombs, which look beautiful on the outside but on the inside are full of the bones of the dead and everything unclean. In the same way, on the outside you appear to people as righteous but on the inside you are full of hypocrisy and wickedness. Woe to you, teachers of the law and Pharisees, you hypocrites! You build tombs for the prophets and decorate the graves of the righteous.“
Matthew 23:1-29
“But there were also false prophets among the people, just as there will be false teachers among you. They will secretly introduce destructive heresies, even denying the sovereign Lord who bought them – bringing swift destruction on themselves. Many will follow their depraved conduct and will bring the way of truth into disrepute. In their greed these teachers will exploit you with fabricated stories. Their condemnation has long been hanging over them, and their destruction has not been sleeping. For if God did not spare angels when they sinned, but sent them to hell, putting them in chains of darkness to be held for judgment; if He did not spare the ancient world when He brought the flood on its ungodly people, but protected Noah, a preacher of righteousness, and seven others; if He condemned the cities of Sodom and Gomorrah by burning them to ashes, and made them an example of what is going to happen to the ungodly; and if He rescued Lot, a righteous man, who was distressed by the depraved conduct of the lawless (for that righteous man, living among them day after day, was tormented in his righteous soul by the lawless deeds he saw and heard) – if this is so, then the Lord knows how to rescue the godly from trials and to hold the unrighteous for punishment on the day of judgment. This is especially true of those who follow the corrupt desire of the flesh and despise authority. Bold and arrogant, they are not afraid to heap abuse on celestial beings; yet even angels, although they are stronger and more powerful, do not heap abuse on such beings when bringing judgment on them from the Lord. But these people blaspheme in matters they do not understand. They are like unreasoning animals, creatures of instinct, born only to be caught and destroyed, and like animals they too will perish. They will be paid back with harm for the harm they have done. Their idea of pleasure is to carouse in broad daylight. They are blots and blemishes, reveling in their pleasures while they feast with you. With eyes full of adultery, they never stop sinning; they seduce the unstable; they are experts in greed – an accursed brood! They have left the straight way and wandered off to follow the way of Balaam son of Bezer, who loved the wages of wickedness. But he was rebuked for his wrongdoing by a donkey – an animal without speech – who spoke with a human voice and restrained the prophet’s madness. These people are springs without water and mists driven by a storm. Blackest darkness is reserved for them. For they mouth empty, boastful words and, by appealing to the lustful desires of the flesh, they entice people who are just escaping from those who live in error. They promise them freedom, while they themselves are slaves of depravity – for ‘people are slaves to whatever has mastered them’. If they have escaped the corruption of the world by knowing our Lord and Savior Jesus Christ and are again entangled in it and are overcome, they are worse off at the end than they were at the beginning. It would have been better for them not to have known the way of righteousness, than to have known it and then to turn their backs on the sacred command that was passed on to them. Of them the proverbs are true: ‘A dog returns to its vomit’, and, ‘A sow that is washed returns to her wallowing in the mud’.”
2 Peter 2
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