Yes, Gal 6:7,8 for one... if you sow to the flesh (sin) you shall of the flesh reap corruption!
Those that become corrupt are no longer in right standing with the Lord meaning that have been separated from the Lord because in Him there is NO darkness.
1 John 3:6
Whosoever abideth in him sinneth not
1 John 2:4
He that saith, I know him, and keepeth not his commandments, is a liar, and the truth is not in him.
1 John 1:6
if we say that we have fellowship with him, and walk in darkness, we lie, and do not the truth:
That is speaking of God's love... of course he still loves us if we sin.. but when we sin we become unrighteous.
If this were not true, then 1 John 1:9 would not be saying IF we confess our sins He shall cleans us of all unrighteousness
This is another way we know that when we sin, we have become unrighteous.
And it';s WHY the Lord warns us through out the New Testament against living in sin walking after the flesh... if we walk after the flesh we shall die (Romans 8:13) which is spiritual death, becoming unrighteous being separated from God just like what happened to Adam and Eve
This is written to Christians:
Romans 8:13
For if ye live after the flesh, ye shall die: but if ye through the Spirit do mortify the deeds of the body, ye shall live.
Not when the person decides to use their body to do sin!
1 Thessalonians 4:4
That every one of you should know how to possess his vessel in sanctification and honour;
Romans 12:1,2 (see James 4:4 - whosoever will be a friend of the world is the enemy of God – WARNING!)
I declare to you therefore, brethren, by the mercies of God, that you present your body a living sacrifice, Holy, acceptable unto God, which is your reasonable service....and be not conformed to this world (see James 4:4): but be transformed by the renewing of your mind (understanding, vision), that you may prove what is that good, and acceptable, and perfect, will of God.
1 Corinthians 6:19, 20
Your body is the temple of the Holy Spirit which is in you, which you have of God, and you are not your own....for you are bought with a price: therefore glorify God in your body, and in your spirit, which are God's.
God's Word tells us to control our body!
And that would be their fault for engaging in sinful behavior and refusing to humble themselves before the Lord and turn away from their loving sin more than loving God!
2 Corinthians 6:17
Wherefore come out from among them, and be ye separate, saith the Lord, and touch not the unclean thing; and I will receive you,
God received those that come out of the world is is not living in uncleanliness (sin)
Not true... God has a remnant of faith people that detest sin and does not engage in sinful behavior.
Those that become lukewarm thinking it's all good as long as we don't sin all the time... are deceived by the devil and are mocking God whether they know it or not. If we sow to the flesh (sin), we SHALL reap corruption
Hebrews 3:13
But exhort one another daily, while it is called To day; lest any of you be hardened through the deceitfulness of sin.