Philippians 4:19 - Coke's Commentary on the Holy Bible

But my God shall supply— And my God. This is to be understood in the nature of a wish, or as expressive of what was the matter of his prayer for them. Many copies and versions read it in the optative mood; and may my God supply. Observe further, he says not our God, but my God; because he is speaking of God's recompensing to them the kindness which they had shown to him, as his servant; it was therefore most proper to mention the relation which God stood in to him, as that would be a means of the divine regard to those who had done him good.