But He didn't empty Himself of His power...at least not completely. John 10:18...Jesus says He has the power to lay down His life and the power to take it up again.
It's worth noting, as well, that in order to qualify as Messiah, His life had to include humiliation in position, life, and even death.
If you look at the transfiguration or the description of Jesus in Revelation 1, you can begin to get an idea of just how much He emptied Himself of.
Actuallt, Jesus said, " i have authority (exousian) to lay down my life, and I have authority (exousian) to receive it again (palin labein autEn)
The view I have been taught is that Christ is fully God and fully human at the same time, but that He gave up the independent use of His deity and subordinated Himself to the will of the Father. He never gave up His deity. He is the God-man forever. When He did a miracle from His deity it was always according to the will of the Father. What the Father showed Him to do is what He did, every step of the way to the cross.
It sounds like you think the Son's omniscient divine will and the Father's omniscient divine will are different such that the Son before incarnation, during his earth-bound life and after His glorification must defer to the different will of the Father. That appears to contradict the necessary tenets of non-kenotic trinitarian dogma of the three being one essence.