Occurring at the beginning of an epistle only here and 3Jo 1:2.
When I gave all diligence (πᾶσαν σπουδὴν ποιούμενος)
Lit., making all diligence; the phrase found only here. In Heb 6:11, we find “shew diligence” (ἐνδεικνυσθαι); and in 2Pe 1:5, “adding diligence.” See note there.
The common salvation
The best texts add ἡμῶν, of us. So Rev., “our common salvation.”
It was needful (ἀνάγκην ἔσχον)
Lit., I had necessity. Alford, I found it necessary. Rev., I was constrained.
Earnestly contend (ἐπαγωνίζεσθαι)
Only here in New Testament.
The faith
The sum of what Christians believe. See on Act 6:7.
Once (ἅπαξ)
Not formerly, but once for all. So Rev., “No other faith will be given,” says Bengel.