Theophylact of Ohrid
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.
From the question of the disciples, Hath any man brought Him ought to eat, we may infer that our Lord was accustomed to receive food from others, when it was offered Him: not that He who giveth food to all flesh, (Ps. 146.) needed any assistance; but He received it, that they who gave it might obtain their reward, and that poverty thenceforth might not blush, nor the support of others be esteemed a disgrace. It is proper and necessary that teachers should depend on others to provide them with food, in order that, being free from all other cares, they may attend the more to the ministry of the word.