Malachi 3:7

7 Yet from the days of your fathers You have gone away from My ordinances And have not kept them. Return to Me, and I will return to you," Says the Lord of hosts. "But you said, 'In what way shall we return?'

Matthew 18:21-22

21 Then Peter came to Him and said, "Lord, how often shall my brother sin against me, and I forgive him? Up to seven times?"

22 Jesus said to him, "I do not say to you, up to seven times, but up to seventy times seven.

John 15:4-6

4 Abide in Me, and I in you. As the branch cannot bear fruit of itself, unless it abides in the vine, neither can you, unless you abide in Me.

5 I am the vine, you are the branches. He who abides in Me, and I in him, bears much fruit; for without Me you can do nothing.

6 If anyone does not abide in Me, he is cast out as a branch and is withered; and they gather them and throw them into the fire, and they are burned.

1 Timothy 4:1

1 Now the Spirit expressly says that in latter times some will depart from the faith, giving heed to deceiving spirits and doctrines of demons,

1 Timothy 4:16

16 Take heed to yourself and to the doctrine. Continue in them, for in doing this you will save both yourself and those who hear you.

Hebrews 10:35-39

35 Therefore do not cast away your confidence, which has great reward.

36 For you have need of endurance, so that after you have done the will of God, you may receive the promise:

37 "For yet a little while, And He who is coming will come and will not tarry.

38 Now the just shall live by faith; But if anyone draws back, My soul has no pleasure in him."

39 But we are not of those who draw back to perdition, but of those who believe to the saving of the soul.

1 John 1:9

9 If we confess our sins, He is faithful and just to forgive us our sins and to cleanse us from all unrighteousness.

1 John 2:1

1 My little children, these things I write to you, so that you may not sin. And if anyone sins, we have an Advocate with the Father, Jesus Christ the righteous.

1 John 2:24-25

24 Therefore let that abide in you which you heard from the beginning. If what you heard from the beginning abides in you, you also will abide in the Son and in the Father.

25 And this is the promise that He has promised us--eternal life.