This prayer comes from an old leaflet that is a rosary for priests.
O Jesus, You are the Eternal High Priest. Because You are true God and true man, You are the only Mediator between God and man. Through You, the merciful Father gives man salvation and through You, man is led back to Him.
You have established priests as Your collaborators to perpetuate in the Holy Mass, the Sacrifice of Your death on the Cross and to sanctify souls through their ministry.
0 Jesus, choose from all the people of the world worthy and numerous ministers so that all souls may find salvation.
0 Jesus, Savior of the world, sanctify Your priests and seminarians.
0 God, who have established Your only-begotten Son as the Eternal High Priest, grant, we beseech You, that those who are chosen by Christ as ministers of Your mysteries may be kept always faithful in the fulfillment of their service.
Through our Lord Jesus Christ, Your Son, in the unity of the Holy Spirit. Amen.