John Calvin Reformed @genevareformer

3 I give thanks. He begins with thanksgiving “Vne protestation, qu’il est ioyeux de leur bien;” — “A protestation, that he is delighted on account of their welfare.” on two accounts — first, that he may by this token shew his love to the Philippians; and secondly, that, by commending them as to the past, he may exhort them, also, to perseverance in time to come.

Matthew Henry Presbyterian @wholebiblehenry

The apostle proceeds after the inscription and benediction to thanksgiving for the saints at Philippi. He tells them what it was he thanked God for, upon their account. Observe here, I. Paul remembered them: he bore them much in his thoughts; and though they were out of sight, and he was at a distance from them, yet they were not out of his mind: or...

Commenting on Philippians 1:3-6

Albert Barnes Presbyterian @notesbybarnes

Verse 3. I thank my God upon every remembrance of you. Marg., mention. The Greek word means recollection, remembrance. But this recollection may have been suggested either by his own reflections on what he had seen, or by what he had heard of them by others, or by the favours which they conferred on him reminding him of them.