Jamieson, Fausset and Brown on 1 Corinthians 16:24

24. My love, &c.--After having administered some severe rebukes, he closes with expressions of "love": his very rebukes were prompted by love, and therefore are altogether in harmony with the profession of love here made: it was love in Christ Jesus, and therefore embraced "all" who loved Him.

The subscription represents the Epistle as written from Philippi. 1Co 16:8 shows it was written at Ephesus. Bengel conjectures that perhaps, however, it was sent from Philippi (1Co 16:5), because the deputies of the Corinthians had accompanied Paul thither. From Ephesus there was a road to Corinth above Philippi.