Go to Philippians 2:5-8 and read of the 'Kenosis', or the emptying that Jesus did to become man. As part of the incarnation, He took on humanity, while not displaying all of His Godly attributes. One example is at the transfiguration where Jesus reveals His glory, which had been hidden. As for Matt 27:46, when Jesus was on the cross, and God the Father placed on God the Son the sins of all who would believe, God the Father was could not look at God the Son who had become sin for us 2 Cor 5:21 and Habakkuk 1:13.