2 Corinthians 1:14

καθὼς καὶ ἐπέγνωτε κ. τ. λ.: as also ye did acknowledge us in part; i.e., some of them made this acknowledgment, but not all (1 Corinthians 3:4). ὅτι καύχημα ὑμῶν ἐσμεν : that (not “because”) we are your glorying (cf. 2 Corinthians 5:12); that is, the Corinthian Church was proud of its connexion with the great Apostle, and still “gloried” in him. καθάπερ καὶ ὑμεῖς ἡμῶν κ. τ. λ.: as ye also are ours, in the day of our Lord Jesus. Lest this assertion of his single-mindedness and integrity should seem to claim any undue superiority to his fellow Christians at Corinth, he hastens to add, parenthetically, with remarkable tact, that if he is their “glory” so are they his. He constantly thinks thus of his converts; cf., e.g., Philippians 2:16 and 1 Thessalonians 2:19-20. ἐν τῇ ἡμέρᾳ τοῦ Κυρίου Ἰησοῦ : “A day of the Lord,” “The Day of the Lord” are common expressions in the prophets; cf. Isaiah 13:6; Isaiah 13:9; Jeremiah 46:10; Ezekiel 30:3; Zechariah 14:1; Joel 1:15; Joel 2:1; Joel 2:11; Joel 2:31 (cited Acts 2:20), etc. And the phrase is taken up by St. Paul (1 Thessalonians 5:2; 1 Corinthians 1:8; 1 Corinthians 5:5; cf. Philippians 1:10; 2 Timothy 1:12), and is applied to the Second Advent of Christ; cf. also 2 Peter 3:10, and Matthew 24:42.