Hebrews 12:15
Look carefully [at how you are living] so that no one falls away from God's unearned favor, and that no "poisonous plant sprouts up" to cause trouble and corrupt many people [Note: This is an analogy from Deut. 29:16-18 being used as a warning against the evil influence of wicked people],
Galatians 5:4
Those of you who seek to be right with God by observing the requirements of the law of Moses have severed yourselves from [your relationship with] Christ; you have fallen away from God's unearned favor.
Hebrews 3:12
Pay attention, brothers, so that there will not be in any one of you an evil heart of unbelief, [resulting] in falling away from the living God.
2 Corinthians 6:1
As workers together with God we urge you also, who have received God's unearned favor, do not allow it to be for nothing,
Hebrews 4:1
So, as long as God's promise of entering into a state of rest with Him [still] remains, we should fear that someone among you will appear [in the end] to have fallen short of [attaining] it. [Note: In this section "entering into rest" refers to Israel entering Canaan (verses 6, 8) and to Christians entering heaven (verses 3, 9). The "Sabbath day rest" is represented as a type of both].
Matthew 7:16-18
You can recognize them by their fruit [i.e., by what their lives produce]. Do people harvest grapes from thorn bushes, or figs from thistle weeds?
Luke 22:32
But I prayed earnestly for you, that your faith would not fail [to be strong]. And when you have turned back [i.e., from going astray briefly], provide [spiritual] support to your brothers."
Acts 20:30-31
[Indeed, even] from among your own selves [i.e., the body of elders there in Ephesus] some men will arise and, by speaking false things, they will lead away the disciples, [influencing them] to follow them.
1 Corinthians 5:6
Your boasting is not good. Do you not know that a little yeast can leaven the whole batch of dough?
1 Corinthians 9:24-27
Do you not know that [although] everyone runs in a race, only one person wins the prize? So, you should run in order to win.
1 Corinthians 10:12
So, the person who thinks he is standing firm [in the faith] should pay attention [to his life], so that he does not fall [away from God].
1 Corinthians 13:8
Love will never cease. But though there are [now supernatural gifts of] prophecies, [someday] they will be abolished [i.e., such gifts will cease to be exercised]. Though there are [now supernatural gifts of] languages, [someday] they will stop [i.e., such gifts will cease to be exercised]. Though there is [now the supernatural gift of] knowledge, [someday] it will be abolished [i.e., this gift will cease to be exercised].
1 Corinthians 15:33
Do not be fooled; bad company ruins good moral behavior.
2 Corinthians 13:5
Put yourselves to a test; see if you are [really] in the faith [i.e., see if you are genuine Christians]; examine yourselves! Or, do you not realize that Jesus Christ is in your hearts, unless [of course] you fail the test [i.e., unless you are counterfeit Christians].
Galatians 2:13
Then the rest of the Jews also discontinued [eating with Gentiles] along with Peter, until even Barnabas was influenced to go along with this hypocritical practice.
Ephesians 5:3
But you should not even talk about sexual immorality, or any type of [moral] impurity, or greed. [Note: Possibly "greed" here means "desire for more" of such things]. Such talk is not suitable for saints [i.e., God's holy people].
Colossians 3:5
So, put to death [i.e., stop practicing the desires of] your physical bodies [such as] sexual immorality, [moral] impurity, lust, evil desires and greed, which is [in reality] idolatry.
2 Timothy 2:16-17
But avoid worldly, empty chatter, for those who practice it will become more and more ungodly,
Hebrews 2:1-2
So [then], we [Christians] should pay closer attention to the things we have heard, so that we do not drift away from [believing and practicing] them.
Hebrews 4:11
So, we should do our best to enter into that state of rest, so that no one fails [to do so] by following the same example of disobedience [i.e., as seen in the Israelites. See verses 2, 6].
Hebrews 6:11
And it is our desire that each one of you shows the same eagerness [to live for Christ], so as to be fully assured of your hope [in never ending life] until the end [of your days].
Hebrews 10:23-35
[So], we should hold on firmly to the profession of our hope [in God], without wavering from it, for God is faithful to His promises.
2 Peter 1:10
So, brothers, be diligent to make sure of your calling and election [i.e., of your status as being selected by God], for when you do, you will never stumble [and fall away from God].
2 Peter 2:1-2
But just as there were false prophets among the people before, there will also be false teachers among you [Christians]. They will privately teach harmful doctrines that destroy people [spiritually], by even denying [that Jesus is] the Master, [and thereby] destroying themselves quickly.
2 Peter 2:18
[Although] their talk is big, what they say is worthless, and by [offering people] fleshly desires [i.e., sexual gratification], they lead people astray, who are barely escaping from the error of the world.
2 Peter 3:11
Since all these things are [certain] to be destroyed, what kind of persons should you be, [if not like those] living holy lives, and in a godly manner,
2 Peter 3:14
So, my dearly loved ones, while you are waiting for these things [to happen], do your best to be found at peace with God, pure and blameless in His sight.
2 John 1:8
Pay close attention to yourselves, so that you do not lose what we [Note: Some Greek manuscripts say "you"] worked for [i.e., the spiritual blessings you have acquired], but [continue faithful] so that you will receive a full reward. [See Luke 12:47-48; James 3:1; Matt. 20:1-15].
Jude 1:20-21
But, you dearly loved ones, build yourselves up [spiritually] on [the foundation of] your most sacred faith; pray in [the power of] the Holy Spirit.