What Does It Mean to Eat and Drink to the Glory of God?

For instance, a person then eats and drinks to the glory of God, when, confessing himself unworthy to enjoy this life and the conveniencies of it, he praises that bountiful favour of God, which abundantly bestows all things upon him, and above all admires that immense love of the Lord Jesus, who willingly was destitute of all the dainties of life, and submitted to drink vinegar and gall, that his people, through the favour of God, might eat the fat and drink the sweet: when also he does not delight so much in the creatures and the gifts of providence, as in the Creator himself and the giver; tasting to his unspeakable pleasure, how sweet the Lord is: when he sincerely proposes faithfully to employ his life, which is lengthened out by these means, and all his faculties, which are thus continually refreshed, to the service of God, who gave and preserves them: when, in fine, he rises in meditation, from the delights of this natural life, to the almost unspeakable pleasures of a future and heavenly life; and having a prelibation of them in thought and faith, with a grateful heart tunes up a song of love to God: “Lord, if thou doest such things in this dark dungeon, what wilt thou not do for us, when admitted into thy palace of light!” — Herman Witsius, The Economy of the Covenants, 3.7.99