Augustine of Hippo
Catena Aurea · Matthäusevangelium 6
Therefore take no thought, saying, What shall we eat? or, What shall we drink? or, Wherewithal shall we be clothed? (For after all these things do the Gentiles seek:) for your heavenly Father knoweth that ye have need of all these things. But seek ye first the kingdom of God, and His righteousness; and all these things shall be added unto you.
(Serm. in Mont. ii. 17.) But when we read that the Apostle suffered hunger and thirst, let us not think that God’s promises failed him; for these things are rather aids. That Physician to whom we have entirely entrusted ourselves, knows when He will give and when He will withhold, as He judges most for our advantage. So that should these things ever be lacking to us, (as God to exercise us often permits,) it will not weaken our fixed purpose, but rather confirm it when wavering.