| Mass of the solemnity; gloria, creed, preface of the solemnity. |
| Cycle I | Vigil Mass: [590] (Vigil Mass) Acts 3:1-10; Ps 19:2-3, 4-5; Gal 1:11-20; John 21:15-19. |
| Cycle I | Mass during the day: [591] (Mass during the Day) Acts 12:1-11; Ps 34:2-3, 4-5, 6-7, 8-9; 2 Tim 4:6-8, 17-18; Matt 16:13-19. |
| | Hours of the Solemnity; Te Deum. |
| [RM] | Traditionally on this day, we remember from Scripture Sts. Peter and Paul, apostles (cf. Mt. 16:18-19) [from the Roman Martyrology]. |
