It was always true that there would be a Christ. Everything about this Christ and the sufferings this Christ would endure had a spiritual existence inspiring prophets since most ancient times. Then the actual Christ was manifested - as a human. Taking human form. This is Jesus. He is what humans need for resurrection and life, eternal life. The sufferings had to be human sufferings. The sinlessness has to be human sinlessness in human vulnerable weakness and mortality. We need this. The death is what we need as sacrifice and only human death could meet this need of dealing with our sin. Just the concept of a Christ with a spiritual encapsulation of that concept is not sufficient. He had to actually take human form, become a human, suffer and die a human shedding human blood to be what we need, the propitiation we need and sacrifice for sin we need. He has to be a human mediator, with direct, intimate Son to Father, Father to Son interaction and knowledge and communication in a righteous relationship forever, to be the mediator we need. He has to be resurrected as a human from the dead to be the resurrection and life that we need to give us human resurrection and life, forever. He has to be human Son of Man judge to be judge over us all that we need to have the best possible outcome for us in the judgement day and the time leading up that day, who knows weakness of human condition and mortality so he can sympathise and judge us appropriately, justly and rightly before God. To fulfil all the righteous requirements of God, so we can rest assured in him forever.
