God is my witness; in these words there is the force, if not the form, of an oath. See the like, 2 Corinthians 1:18, 2 Corinthians 11:31 Galatians 1:20. His great love and care of them was a hidden thing, and known only to God; to him therefore he appeals for the truth thereof. Oaths, in certain cases, are allowable under the New Testament, as well as the Old. With my spirit, i.e. sincerely, or with my whole heart: see Ephesians 6:6 2 Timothy 1:3. Without ceasing, i.e. as often as he prayed. This was a great indication of his hearty affection to them.

Continues after advertising
Continues after advertising