Origen — as excerpted in the Catena Aurea on John 4:31-34

“(tom. xiii. c. 6) Fit meat for the Son of God, who was so obedient to the Father, that in Him was the same will that was in the Father: not two wills, but one will in both. The Son is capable of first accomplishing the whole will of the Father. Other saints do nothing against the Father’s will; He does that will. That is His meat in an especial sense. And what means, To finish His work? It would seem easy to say, that a work was what was ordered by him who set it; as where men are set to build or dig. But some who go deeper ask whether a work being finished does not imply that it was before incomplete; and whether God could originally have made an incomplete work? The completing of the work, is the completing of a rational creature: for it was to complete this work, which was as yet imperfect, that the Word made flesh come.”