God is a God of purpose and does nothing without a reason. Jesus was sent to earth by God for a purpose, which He started and finished. An understanding of this purpose will help you to appreciate the coming of jesus christ gospel of love and His mission on earth.
Now all things are of God, who has reconciled us to Himself through Jesus Christ, and has given us the ministry of reconciliation, that is, that God was in Christ reconciling the world to Himself, not imputing their trespasses to them, and has committed to us the word of reconciliation -2 Corinthians 5:18-19 (NKJV)
The thief does not come except to steal, and to kill, and to destroy. I have come that they may have life, and that they may have it more abundantly – John 10:10 (NKJV)
When the angel of the Lord visited Joseph to assure him that it was okay to take Mary as his wife, he gave him the name of the baby and his purpose on earth: to save His people from their sin.
God, from the time of the fall of man via Adam, made a plan to redeem man from his fall and restore him to his original position before the fall. When the Lord created man he was without sin before Him and only knew sin when they disobeyed God and ate the forbidden fruit (Genesis 3:1-11). So, through Adam, sin entered the world and people became sinners (Romans 5:12, 19).
Jesus was God’s wisdom and power (1 Corinthians 1:24) to save man from his sins and restore him to his original state before the fall. In Genesis 3:15, God declared this plan of victory over the devil – the Seed of the woman was to defeat the devil. The enemy expected it, tried to abort it many times but failed because he didn’t know how God was going to execute His plan.
When the birth of Jesus was announced to King Herod by the wise men from the east, the enemy tried to kill Jesus through Herod but he failed, he only succeeded in killing innocent babies – Matthew 2:1-18. And when Jesus started His ministry fully, the devil tried many times too to kill Him through the people (Luke 4:28-30) but couldn’t touch Him because it wasn’t time for His death (Luke 22:53).
The wisdom of God was a great mystery to them because if they had known it, the devil would not have allowed the people to crucify Jesus (1 Corinthians 2:7-8). He thought Christ’s death would be his victory not knowing it was going to be his downfall (Colossians 2:13-15).
Christ, who knew no sin, became sin that we might be saved and become the righteousness of God (2 Corinthians 5:21). On the cross, Christ carried our sins in our place so that we can be pure before God, our sins were washed away and we stand totally new before God; old things are passed away and behold all things have become new (2 Corinthians 5:17).
God is of purer eyes than to behold iniquity (Habakkuk 1:13). So, when Jesus was on the cross with the sins of humanity, God turned His back on Him and that was why Jesus cried out, “My God, My God, why have you forsaken Me?” – Matthew 27:46 (NKJV). For the first time, Christ addressed God as God instead of Father as He had always done. But He achieved His purpose which was to save man. Now anyone who receives Him receives the gift that was fully paid for: sins washed away and salvation of soul.