"It is meat and drink to me"
From Shakespeare's As You Like It.
John 4:32-34
But he said unto them, I have meat to eat that ye know not of. [33] Therefore said the disciples one to another, Hath any man brought him ought to eat? [34] Jesus saith unto them, My meat is to do the will of him that sent me, and to finish his work.
Deut. 8:3
And he humbled thee, and suffered thee to hunger, and fed thee with manna, which thou knewest not, neither did thy fathers know; that he might make thee know that man doth not live by bread only, but by every word that proceedeth out of the mouth of the Lord doth man live.
Matthew 4:4
But he answered and said, It is written, Man shall not live by bread alone, but by every word that proceedeth out of the mouth of God.