Grant, Almighty God, since Thou hast reconciled us to Thyself by the precious blood of Thy Son, that we may not be our own, but devoted to Thee in perfect obedience, and may consecrate ourselves entirely to Thee.

May we offer our bodies and souls in sacrifice and and be better prepared to suffer a hundred deaths than to decline from Thy true and sincere worship.

Grant us, especially, to exercise ourselves in prayer, to fly to Thee every moment and to commit ourselves to Thy fatherly care, that Thy Spirit may govern us to the end.

Do Thou defend and sustain us, until we are collected into that heavenly kingdom Thy only begotten Son has prepared for us by His blood.  Amen.

— John Calvin
From Calvin’s Commentaries