SEX. (See MARRIAGE, ADULTERY, FORNICATION)
SIN is breaking God’s law. “Whosoever committeth sin transgresseth also the law: for sin is the transgression of the law.” (I John 3:4) Any time we break one of God’s commandments, we sin. If we steal one time, even if only a penny, it is breaking the eighth commandment, “Thou shalt not steal.” There are over 600 commandments just in the Old Testament, and every time we sin, it is another debt we owe God, a debt we cannot pay except by death. “For the wages of sin is death….” (Romans 6:23) “Behold, all souls are mine; as the soul of the father, so also the soul of the son is mine: the soul that sinneth, it shall die.” (Ezekiel 18:4) Thankfully someone else paid our debt, “But God commendeth his love toward us, in that, while we were yet sinners, Christ died for us.” (Romans 5:8)
Truly, “all have sinned…” (Romans 3:23), but we did not become sinners the first time we sinned, it was only the proof that we were born sinners. It is a problem we have from birth, we inherited it, “Behold, I was shapen in iniquity; and in sin did my mother conceive me.” (Psalm 51:5) We were born this way, which is why we need a new birth. Our first birth by our mothers will not get us to heaven; we need a spiritual birth by God’s Holy Spirit! We inherited our sin nature from Adam. “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)
Man was created to live forever, but because of sin we are living in a “cursed” world (Genesis 3:17), and in dying bodies. When someone’s sins have been forgiven by God, his spirit receives eternal life, and though his body will die, it will be resurrected a new body. “Who shall change our vile body, that it may be fashioned like unto his glorious body….” (Philippians 3:21, also I Corinthians 15:50-53)
In this life we will never become sinless. “If we say that we have no sin, we deceive ourselves, and the truth is not in us. If we confess our sins, he is faithful and just to forgive us our sins, and to cleanse us from all unrighteousness. If we say that we have not sinned, we make him a liar, and his word is not in us.” (I John 1:8-10) John the Apostle who wrote this did not say “If you say that you have no sin…” nor did he say, “If you confess your sins…”, though this would still be true. Instead he put himself in this verse and said, “If we say that we have no sin…” and “If we confess our sins….” This passage was written in the present tense, so John was not referring to some time before he was saved, but even as an apostle he still had “sins”. (See FORGIVENESS).