1. “And they devoted themselves to the apostles’ teaching.” Acts 2:42

2. “Watch out for those who cause divisions and put obstacles in your way that are contrary to the teaching you have learned.” Romans 16:17 (NIV)

3. “Now I commend you because you remember me in everything and maintain the traditions even as I delivered them to you.” 1 Corinthians 11:2

4. “For I received from the Lord what I also delivered to you.” 1 Corinthians 11:23

5. “For what I received I passed on to you as of first importance: that Christ died for our sins according to the Scriptures, that he was buried, that he was raised on the third day according to the Scriptures.” 1 Corinthians 15:3-4 (NIV)

6. “So then, brothers, stand firm and hold to the traditions that you were taught by us, either by our spoken word or by our letter.” 2 Thessalonians 2:15 (NIV)

7. “Keep away from every brother who is idle and does not live according to the teaching you received from us.” 2 Thessalonians 3:6 (NIV)

8. “So that you may charge certain persons not to teach any different doctrine.” 1 Timothy 1:3

9. “Let all who are under a yoke as slaves regard their own masters as worthy of all honor, so that the name of God and the teaching may not be reviled.” 1 Timothy 6:1

10. “If anyone teaches a different doctrine and does not agree with the sound words of our Lord Jesus Christ and the teaching that accords with godliness, he is puffed up with conceit and understands nothing.” 1 Timothy 6:3-4

11. “Follow the pattern of sound words that you have heard from me, in the faith and love that are in Christ Jesus.” 2 Timothy 1:13

12. “And what you have heard from me in the presence of many witnesses entrust to faithful men who will be able to teach others also.” 2 Timothy 2:2

13. “For the time will come when they will not endure sound doctrine.” 2 Timothy 4:3 (NASB)

14. He must hold firm to the trustworthy word as taught, so that he may be able to give instruction in sound doctrine and also to rebuke those who contradict it.” Titus 1:9

15. “But as for you, teach what accords with sound doctrine.” Titus 2:1

16. “Show that they can be fully trusted, so that in every way they will make the teaching about God our Savior attractive.” Titus 2:10 (NIV)

17. “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.” 2 Peter 2:21 (NIV)

18. “Anyone who runs ahead and does not continue in the teaching of Christ does not have God; whoever continues in the teaching has both the Father and the Son.” 2 John 9 (NIV)

All quotations are from the ESV unless otherwise noted.