Adam Clarke

But I rejoiced in the Lord - Every good comes from God, either immediately from his providence or from his grace; therefore the apostle thanks God for the kindness of the Philippians towards him; for it was God that gave them the power, and directed their hearts to use it. Hath flourished again - They had helped him before, Phi 2:25; they had ceased for a time, and now they began again. This is evidently designed by the apostle, as the word ανεθαλετε implies, which is a metaphor taken from the reviviscence of flowers in spring which seemed dead in winter. For the time in which they were apparently remiss he makes a delicate apology: Ye were careful, but ye lacked opportunity; or rather ηκαιρεισθε, ye had not ability, ye wanted the means; as the word sometimes implies.