Origen
Catena Aurea · Johannesevangelium 4
In the mean while his disciples prayed him, saying, Master, eat. But he said unto them, I have meat to eat that ye know not of. Therefore said the disciples one to another, Hath any man brought him ought to eat? Jesus saith unto them, My meat is to do the will of him that sent me, and to finish his work.
(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.