The reason that people keep on sinning and doing what they know is wrong, unrighteousness, is because they think that they can get away with it, they will not get caught out or nobody will stop them. The reason why Christians, believers, keep on sinning is because they think God has tolerance for sin. God does not tolerate any sin or disobedience. The wages of sin is death.
No sinners, no immoral people, no liars, not the slightest sin will go into the kingdom of heaven. The wages of sin is death and all sinners will perish. God forgives our sin, He writes it off if we repent with remorse and we stop sinning but if we go back to sin we will perish.
The apostle Paul reminds us in Romans 11:22 “Behold then the kindness and severity of God; to those who fell, severity, but to you, God’s kindness, IF YOU CONTINUE IN HIS KINDNESS; OTHERWISE YOU ALSO WILL BE CUT OFF.“ He is talking about Israel, the nation that He saved from oppression in Egypt, He cut them off. He killed them all in the wilderness because they disobeyed Him. God will also cut us off if we do not continue in His kindness. He forgives our past sin if we repent and come to Him but if we continue in sin He will cut us off. The wages of sin is death. You might get away with it in this life, you might not get caught out. You might get accepted by society, it might even be legal to abort your baby, to be immoral, but with God you will not get away with it. You will perish!
Behold His severity but also His kindness over those who love Him and who OBEY Him. Do not squander His mercy but OBEY Him and live. If you sin you will die, you will perish in hell.
May Jesus bless you.