It is impossible to deny the existence of sin, when the whole world is in conflict between good and evil. If sin were not a fact, there would be no crime: we would not need jails or prisons. We would need no locks on our doors, or vaults for our valuables. To some, sin is being indiscreet, or it is a weakness of the flesh. To others, it is the absence from good. To the so-called scholar, sin is ignorance; and to the evolutionist, it is the nature of the beast. The latest theory is that sin is a disease to be treated by science because man is not a sinner- he is only sick. To others, sin is a form of selfishness but God declares that:
ONE- Sin is transgression of the law. (Whosoever committeth sin transgresseth also the law: for sin is the transgression of the law.) 1 John 3:4. (For all have sinned and come short of the glory of God). Romans 3: 23.
TWO- Sin is coming short of the glory of God.
THREE- Sin is a rebellion against God. (Hear, O heavens, and give ear, O earth: for the Lord hath spoken, I have nourished and brought up children, and they have rebelled against me.) Isaiah 1:2)
Four- Sin is unbelief, it makes God a liar. (He that believeth on the Son of God hath the witness in himself: he that believeth not God hath made him a liar: because he believeth not the record that God gave of his Son.). 1 John 5:10.
Five- Sin is going your own way, planning your life according to your own will, without seeking the will of God. (All we like sheep have gone astray; we have turned every one to his own way; and the Lord hath laid on him the iniquity of us all.) Isaiah 53:6.
Six- All unrighteousness is sin. (All unrighteousness is sin.) 1 John 5:17a.
Sin is a folly to deceive you, a force to destroy you and a fact to condemn you. Sin is a volitional act of disobedience against the revealed will of God.
Wherefore, as by one man sin entered into the world, and death by sin; and so death passed upon all men, for that all have sinned: (Romans 5:12)
By one man sin entered into the world: The fall of man is found in Genesis 3:1-24. When Adam sinned, his seed became corrupt; therefore we are sinners, because we are born in sin. (Behold, I was shapen in iniquity; and in sin did my mother conceive me.) Psalm 51:5.
You don’t have to teach children to be bad, but you do have to teach them to be good. You do not have to teach them to lie but you do have to teach them to tell the truth.
According to the Word of God all men are judged sinners; all are condemned already. (He that believeth on him is not condemned: but he that believeth not is condemned already, because he hath not believed in the name of the only begotten Son of God.) John 3:18. Sin entered the world through our first parents in the Garden of Eden, For “all have sinned” because all are sinners.
Man sins by choice, because he is a sinner by nature. Therefore, the dominion sin has over you is according to the delight you have in it.
The Solution: For God so loved the world that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life. It is an eternal fact that God loves you with an everlasting love that cannot be fathomed; it is so boundless that it can only be known by faith. The little word “so” in the above verse is most expressive. It gives you some concept of the magnitude of God’s love. God so loved you; that He gave His only begotten Son, to be made sin for you, that you might be made the righteousness of God in Him. (For he hath made him to be sin for us, who knew no sin; that we might be made the righteousness of God in him.) 11 Corinthians 5 21. Jesus Christ came into this world to be the only means of the new birth. Placing out faith in Jesus Christ who died for our sins is the solution.
Reference: The Christian Life New Testament