Prayer to Be a Worthy Priest

From A Catholic Prayer Book

Almighty and merciful God, graciously attend to my humble prayers; and make me, your servant whom you have appointed to dispense your heavenly mysteries, through no merits of my own, but only of the infinite bounty of your mercy, a worthy minister at your sacred altar, that what is set forth by my voice may be confirmed by your hallowing grace. Through Christ our Lord. Amen.