O God, fill us with that spirit of courage which gave thy martyr Sebastian strength to offer his life in faithful witness; and help us to learn from him to cherish thy law and to obey thee rather than men; through Jesus Christ thy Son our Lord, who liveth and reigneth with thee, in the unity of the Holy Ghost, world without end. Amen.

St Sebastian Tended by St Irene, by Hendrick ter Brugghen (1588–1629). From Wikipedia.