Prayer for priests by Saint Charles Borromeo:

O Holy Mother of God, pray for the priests your Son has chosen to serve the Church. Help them, by your intercession, to be holy, zealous, and chaste. Make them models of virtue in the service of God's people. Help them be pious in meditation, efficacious in preaching, and zealous in the daily offering of the Holy Sacrifice of the Mass. Help them administer the Sacraments with love and joy. Amen.