John 12:27
Now is my soul troubled; and what shall I say? Father, save me from this hour: (BUT FOR THIS CAUSE CAME I UNTO THIS HOUR)
John 18:37
Pilate therefore said unto him, Art thou a king then? Jesus answered, Thou sayest that I am a king. (TO THIS END WAS I BORN, AND FOR THIS CAUSE CAME I INTO THE WORLD), (THAT I SHOULD BEAR WITINESS TO THE TRUTH). Every one that is of the truth heareth my voice.
Rom. 8:3
For what the law could not do, in that it was weak through the flesh, (GOD SENDING HIS OWN SON IN THE LIKENESS OF SINFUL FLESH,AND FOR SIN, CONDEMNED SIN IN THE FLESH)
John 3:16
(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).
Scripture itself tells us why, end of story.
None of those verses show that Jesus had to die on the cross to save us. Jesus came to be a witness of the truth, to bring us the gospel and to overcome the world and Satan. Which he did. He is the way the truth and the life.
It says in the Bible that we are saved by his life not his death
Romans 5
For if, when we were enemies, we were reconciled to God by the death of his Son, much more, being reconciled, we shall be saved by his life
Jesus came here and was born to be a witness to the truth.
John 18
Jesus answered, Thou sayest that I am a king. To this end was I born, and for this cause came I into the world, that I should bear witness unto the truth. Every one that is of the truth heareth my voice.
Jesus didn't come to be crucified but to be a witness of the truth. He is the Messiah, he was anointed by God and he had the strength the holy spirit fully through him because he obeyed God completely, and did his will, denying his own. Jesus came and did what Adam couldn't do.
Jesus lived his life completely doing the will of God, he came and obeyed God and completely denied Satan, not giving into him once. Even at the cross, Jesus had to bare everything Satan threw at him, and show love compassion and mercy. He overcame Satan and never sinned right to his last breath, even asking God to forgive those who murdered him.
And another thing, God never ever forsook Jesus, he was with him and strengthening him right the way through, God never forsakes those that love him. I know God didn't forsake Jesus, because he prayed to God so God must have been listening, and as he died he said "father into your hands I commend my spirit" God never left him.
The cross that Jesus bore, is the same cross that he tells us that we must bare. He came as a living sacrifice, in the same way that we are told to be in the scriptures. And he denied Satan just as he tells us to. He came and showed us the way back to God. He was dead to this world and we are reconciled to God by that death, but we are saved by his life, which is living it out and his spirit resurrected in us, helping us to overcome and saving us daily from Satan. As we die daily, he lives daily. Thus we show Christ in our lives.
Jesus said deny yourself, take up your cross and follow me. And we follow him by doing as he did, we live out out, he denied his flesh, and he bore his cross.
We must obey God, and if we have Christ in our hearts we will obey his commandants. Because if we love the lord our God with all our hearts, soul, mind and strength, and our neighbour as ourselves then we won't break the commandments of God. And with God, all things are possible.
Those who believe, and don't take up their cross, are not worthy of him. We must live it out.