If Thursday 29 June is celebrated as the Festival of Peter alone:
1 Peter 2.19-25
Psalms 71, 113
Psalms 124, 138
O Almighty God, who by thy Son Jesus Christ didst give to thy Apostle Saint Peter many excellent gifts, and commandedst him earnestly to feed thy flock; Make, we beseech thee, all Bishops and Pastors diligently to preach thy holy Word, and the people obediently to follow the same, that they may receive the crown of everlasting glory; through Jesus Christ our Lord.