Numbers 33:55 But if you do not drive out the inhabitants of the land from before you, then those of them whom you let remain shall be as barbs in your eyes and thorns in your sides, and they shall trouble you in the land where you dwell.
Exodus 23:33 They shall not dwell in your land, lest they make you sin against me; for if you serve their gods, it will surely be a snare to you.”
Deuteronomy 7:4 for they would turn away your sons from following me, to serve other gods.
Joshua 23:12-13 For if you turn back and cling to the remnant of these nations remaining among you and make marriages with them, so that you associate with them and they with you, know for certain that the LORD your God will no longer drive out these nations before you, but they shall be a snare and a trap for you, a whip on your sides and thorns in your eyes, until you perish from off this good ground that the LORD your God has given you.
Psalms 106:34-36 They did not destroy the peoples, as the LORD commanded them, but they mixed with the nations and learned to do as they did. They served their idols, which became a snare to them.
Genesis 4:7 If you do what is right, will you not be accepted? But if you refuse to do what is right, sin is crouching at your door; you are its object of desire, but you must master it.”
Romans 6:11 So you also must consider yourselves dead to sin and alive to God in Christ Jesus. Let not sin therefore reign in your mortal body, to make you obey its passions.
Psalms 119:133 Keep steady my steps according to your promise, and let no iniquity get dominion over me.
Romans 8:13 For if you live according to the flesh you will die, but if by the Spirit you put to death the deeds of the body, you will live.
Romans 13:14 But put on the Lord Jesus Christ, and make no provision for the flesh, to gratify its desires.
I have taken most of this from an author on the internet but could not find his name to the article.
It helps to illustrate the force of sin and to suggest that, among other things, that we have to answer for every deed, however quickly it fades, however long forgotten. Its guilt is on our heads. Its consequences have to be experienced by us. We drink as we have brewed. As we make our beds, so we lie on them. There is no escape from the law of consequences.
Think how you would like it, if all your deeds from your childhood, all your follies, your vices, your evil thoughts, your evil impulses, and your evil actions, were all made visible and embodied there before you. They are there, though you do not see them yet. All around your door they sit, ready to meet you and to bay out condemnation as you go forth. They are there, and one day you will find out that they are. For this is the law, certain as the revolution of the stars and fixed as the pillars of the firmament: ‘Whatsoever a man sows, that shall he also reap.’ There is no seed which does not sprout, in the harvest of the moral life. Every deed germinates according to its kind. For all that a man does he has to carry the consequences, and every one shall bear his own burden. ‘If thou doest not well,’ it is not, as we fondly conceive it sometimes to be, a mere passing deflection from the rule of right, which is done and done with, but we have created, as out of our very own substance, a witness against ourselves whose voice can never be stifled. ‘If thou doest not well,’ thy sin takes permanent form and is fastened to thy door.
The records of memory are like those pages on which you write with sympathetic ink, which disappears when dry, and seems to leave the page blank. ‘Stolen waters are sweet, and bread eaten in secret is pleasant.’ Beware of the first step, for as sure as you are living, the first step taken will make the second seem to become necessary. The first drop will be followed by a bigger second, and the second, at a shorter interval, by a more copious third, until the drops become a shower, and the shower becomes a deluge. The river of evil is ever wider and deeper, and more tumultuous. The little sins get in at the window and open the front door for the full-grown housebreakers.
Can a man cast out sin from his nature by his own resolve? Can a man cleanse himself from every deed and thought he has had or done throughout his life? Does forgetting sins of the past remove the consequences for eternity? Can a man keep all the sin that is crouching at his door at bay? NO, he can’t.
Your sin is mightier than you. The old word of the Psalm is true about every one of us, ‘Our iniquities are stronger than we.’ And, blessed be His name! the hope of the Psalmist is the experience of the Christian: ‘As for my transgressions, Thou wilt purge them away.’ Christ will strengthen you to conquer; Christ will take away your guilt; Christ will bear, has borne your burden; Christ will cleanse your memory; Christ will purge your conscience. Trusting to Him, and by His power and life within us, we may conquer our evil. Trusting to Him, and for the sake of His blood shed for us all upon the cross, we are delivered from the burden, guilt, and power of our sins and of our sin. With your belief in Him, your hand in His, your trust in Him, your reliance in Him, and your will submitted to Him, sin can be removed as far as the east is from the west.
