Mark 14:36

Mark 14:36 And He said, Abba Father, all things are possible to You; remove this cup from Me; yet not what I will, but what You will. 

In the Old Testament there were many offerings or sacrifices. God sent His Son, Jesus Christ, to replace all these. It was God’s will that Christ should die as the replacement for all the offerings. The Lord Jesus knew that it was God’s will for Him to die as the replacement of the offerings. This was the reason He prayed, “Not what I will, but what You will.”