The Authentication of Paul’s Letters

In 2:2 Paul warns against letters that claim to come from him but do not. In 11 places in his letters Paul either identifies himself or gives his signature. This supports the conclusion that all of the NT letters attributed to Paul are in fact authentic, rather than having been written by someone else in Paul’s name.

1 Cor. 16:21I, Paul, write this greeting with my own hand
2 Cor. 10:1I, Paul, myself entreat you
Gal. 5:2Look: I, Paul, say to you
Gal. 6:11See with what large letters I am writing to you with my own hand
Eph. 3:1I, Paul, a prisoner of Christ Jesus
Col. 1:23of which I, Paul, became a minister
Col. 4:18I, Paul, write this greeting with my own hand
1 Thess. 2:18we wanted to come to you—I, Paul, again and again
2 Thess. 2:2not to be . . . alarmed . . . by . . . a letter seeming to be from us
2 Thess. 3:17I, Paul, write this greeting with my own hand. This is the sign of genuineness in every letter of mine; it is the way I write
Philem. 19I, Paul, write this with my own hand