Hebrews 13:25

25. Grace… all Here, as said in our Introduction to this epistle, we have St. Paul’s own appointed sign-manual given to authenticate his own epistle. This was declared by him to be the “token” of his hand in the second one of his written epistles extant. 2 Thessalonians 3:17-18: “The salutation of Paul with mine own hand, which is the TOKEN in every epistle: so I write, The grace of our Lord Jesus Christ be with you all. Amen.” In every one of Paul’s fourteen epistles is this token found. 1 Thessalonians 5:28; 2 Thessalonians 3:18; Galatians 6:18; 1 Corinthians 16:23; 2 Corinthians 13:14; Romans 16:24; Colossians 4:18; Philemon 1:25; Ephesians 6:24; Philippians 4:23; 1Ti 6:21 ; 2 Timothy 4:22; Titus 3:15. This seems to be a declaration by the author himself that he is no other than Paul.