John Calvin's Commentary on the Bible - Philippians 1:8
Verse 8 8.For God is my witness. He now declares more explicitly his affection for them, and, with the view of giving proof of it, he makes use of an oath, and that on good grounds, because we know how dear in the sight of God is the edification of his Church. It was, too, more especially of advantage, that Paul’s affection should be thoroughly made known to the Philippians. For it tends in no small degree to secure credit for the doctrine, when the people are persuaded that they are beloved by... read more
Adam Clarke's Commentary on the Bible - Philippians 1:11
Being filled with the fruits of righteousness - By righteousness we may understand, here, the whole work of the Spirit of God, in the soul of a believer; and by the fruits of righteousness, all holy tempers, holy words, and right actions. And with these they are to be filled, πεπληρωμενοι , filled up, filled full; the whole soul and life occupied with them, ever doing something by which glory is brought to God, or good done to man. By Jesus Christ - That is, according to his doctrine,... read more