John Chrysostom — as excerpted in the Catena Aurea on John 10:14-21

“(Hom. lx. 2) As they had often plotted to kill Him, He tells them their efforts will be useless, unless He is willing. I have such power over My own life, that no one can take it from Me, against My will. This is not true of men. We have not the power of laying down our own lives, except we put ourselves to death. Our Lord alone has this power. And this being true, it is true also that He can take it again when He pleases: And I have power to take it again: which words declare beyond a doubt a resurrection. That they might not think His death a sign that God had forsaken Him, He adds, This commandment have I received from My Father; i. e. to lay down My life, and take it again. By which we must not understand that He first waited to hear this commandment, and had to learn His work; He only shows that that work which He voluntarily undertook, was not against the Father’s will.”