<_<... it's the shedding of the blood. The last sacrifice. He didn't "come back" as if he were human again; he came back transfigured. Jesus is "God in the flesh"; Jesus died on the cross, the flesh died. He transfigured in the tomb; then he walked the earth in spirit... It's not the first time either; he did it as Melchizedek (Melchi for King, Zedek for Chosen. The name means "King of the Chosen/Saints") too; whom of which the church was in the order of. God with us is another way of thinking of it; so when he walked the earth afterwards, it was just God.