It says in Hebrews chapter 2:
> For if the word spoken by angels was stedfast, and every transgression and disobedience received a just recompence of reward;
> How shall we escape, if we neglect so great salvation; which at the first began to be spoken by the Lord, and was confirmed unto us by them that heard him;
> God also bearing them witness, both with signs and wonders, and with divers miracles, and gifts of the Holy Ghost, according to his own will?
God is a just God. He will by no means clear the guilty (Exodus 34:7). This is also something we love about Him, because He is righteous. He doesn't just let people do whatever they want and eternally get away with it. That would be unjust. Since man is unable to pay for or make up for the damage of his sins against the Lord, the only possible thing that could be returned or repaid for that sin is death. As it says in Romans 3:23, "For the wages of sin is death; but the gift of God is eternal life through Jesus Christ our Lord."
So then it is seen that, while the only way that sin (which resulted from the fall of man) could be repaid is death, God also sent His only begotten Son in order to pay that price for us through His blood. God in His infinite mercy had sent His only begotten Son to live and die on earth simply to suffer in our place, as it says, so that no man would need to go to hell. As it says in Hebrews again, "without shedding of blood is no remission." But if we neglect that great salvation, which is a possible choice by resisting what Christ said and not accepting it, then we are left with the only option which is to simply fail to meet the perfect standard God has set out by His law, and have to die alone in our own sins. Try as much as we can, we are all imperfect and do sin. It is a doomed endeavor to try to keep the entire law of God without Christ. As it says in James 2:10, "For whosoever shall keep the whole law, and yet offend in one point, he is guilty of all." Only Jesus Christ is perfect. As it says of Him in Hebrews, Jesus is "holy, harmless, undefiled, separate from sinners, and made higher than the heavens;"
It also says in Galatians 3:22, "But the scripture hath Post too long. Click here to view the full text.