NAS James 4:17 Therefore, to one who knows the right thing to do, and does not do
it, to him it is sin.

NAS Hebrews 6:4 For in the case of those who have once been enlightened and
have tasted of the heavenly gift and have been made partakers of the Holy Spirit, 5
and have tasted the good word of God and the powers of the age to come, 6 and
then have fallen away, it is impossible to renew them again to repentance, since they
again crucify to themselves the Son of God, and put Him to open shame.  (Note
6:9-12.)

NAS Hebrews 10:26 For if we go on sinning willfully after receiving the knowledge of
the truth, there no longer remains a sacrifice for sins, (Note 10:32-36.)

NAS 2 Peter 2:20 For if after they have escaped the defilements of the world by the
knowledge of the Lord and Savior Jesus Christ, they are again entangled in them and
are overcome, the last state has become worse for them than the first. 21 For it
would be better for them not to have known the way of righteousness, than having
known it, to turn away from the holy commandment delivered to them. 22 It has
happened to them according to the true proverb, "A DOG RETURNS TO ITS OWN
VOMIT," and, "A sow, after washing, returns to wallowing in the mire."

NAS 1 Corinthians 5:1 It is actually reported that there is immorality among you, and
immorality of such a kind as does not exist even among the Gentiles, that someone
has his father's wife. 2 And you have become arrogant, and have not mourned
instead, in order that the one who had done this deed might be removed from your
midst.

NAS 2 Corinthians 12:21 I am afraid that when I come again my God may humiliate
me before you, and I may mourn over many of those who have sinned in the past
and not repented of the impurity, immorality and sensuality which they have
practiced.

NAS Galatians 3:1 You foolish Galatians, who has bewitched you, before whose eyes
Jesus Christ was publicly portrayed as crucified? 2 This is the only thing I want to find
out from you: did you receive the Spirit by the works of the Law, or by hearing with
faith? 3 Are you so foolish? Having begun by the Spirit, are you now being perfected
by the flesh? 4 Did you suffer so many things in vain-- if indeed it was in vain? 5
Does He then, who provides you with the Spirit and works miracles among you, do it
by the works of the Law, or by hearing with faith?

NAS Galatians 4:9 But now that you have come to know God, or rather to be known
by God, how is it that you turn back again to the weak and worthless elemental
things, to which you desire to be enslaved all over again?  (Note Galatians 5:7.)