When sin separated man from God, God could not realize why He created man and He made plans to restore man back to Himself through and in Christ. To do this, God brought in a man that is sinless and sacrificed him for the sin of humanity.
Every man has sinned, so where could God havegot a sinless man? Actually, because God’s desire to be one with man is so strong, God made His only son man and sacrificed him for the sin of humanity and then was he able to restore man back into relationship with Himself. Nobody could have kept the law and obtain the righteousness of the law, but Jesus who is the son of God kept the law completely and having obtained righteousness he traded it for our sin and as a result was crushed under the wrath of God and through that, he satisfied the demand of divine justice for the sin of humanity.
Notice, that because God has made His son identified with humanity in our sins, we also have become identified with the son of God in His glory. When God exalted Christ to the highest, we were exalted with him and through Jesus humanity has entered trinity forever. For that man that is sitting at the right hand of the father, he is sitting there even as a man!
Consequently, God said we should tell every man that sin has been dealt with by the cross of Christ and that there is no reason for man to be separated from God any longer. There is no point fighting with God again, God is not angry with any man and He is calling every man into relationship with Him. Hence, Paul said “God was in Christ reconciling the world unto Himself, not imputing their sins unto them” (2 Corinthians 5:19).
If only people can know that there is no need for them to go to hell, to hold their sins against themselves because there is acceptance for every man in Christ! Christ has paid it all and has made every man to deserve a relationship with God. No man in himself deserves to be united with God, because God is holy and man was not. But thank be to Jesus Christ who has made every man qualified to be one with God, by making us holy and blameless before God through faith in the gospel. Now, God is calling on every man, inviting them into relationship with Him.