Luk 22:41 And He was withdrawn from them about a stone’s throw, and He knelt down and prayed,
Luk 22:42 saying, “Father, if it is Your will, take this cup away from Me; nevertheless not My will, but Yours, be done.”
One obvious implication of Jesus’ prayer to God is that Jesus had a separate and unique will than God. Jesus contrasts the two wills by saying “not my will, but yours”. Jesus did not want to die on the cross, and petitioned God to change God’s plan. Jesus sought to find out if God was “willing” to change His plan. Jesus appears also not to know exactly God’s overarching plan or if Jesus’ request would be granted.
Jesus was under the impression that there was a possibility that God would choose a different plan. Jesus was not stuck in a Calvinist mindset. And when Calvinists claim Jesus was omnipresent or omniscient or any other Greek attribute, remind them of the time Jesus asked God to change and did not know if the request would be granted.