Messiah is the God of Israel in the flesh. As a flesh man, Messiah is required to exhibit every characteristic of a man. A man must appear and bow before God in His Presence. Messiah is the forst-born mann to do so, as it is written:
RO 8:28 And we know that in all things God works for the good of those who love Him, who have been called according to His purpose. For those God foreknew He also predestined to be conformed to the likeness of His Son, that He might be the firstborn among many brothers. And those He predestined, He also called; those He called, He also justified; those He justified, He also glorified.
But, as the God of Israel in the flesh, He is also God at one and the same time as He is man. You say that is impossible, right. Have you never read this?
MT 19:26 Yeshuw`ah looked at them and said, "With man this is impossible, but with God all things are possible."