God, Who, in Thine ineffable providence, didst will that Thy servant Francis ... should be numbered among the high priests; grant, we beseech Thee, that he, who on earth held the place of Thine only-begotten Son, may be joined forevermore to the fellowship of Thy holy pontiffs. Through the same Jesus Christ, Thy Son, Who liveth and reigneth with Thee in the unity of the Holy Ghost, God, world without end.
Amen.

Source: Roman Missal