III. For all Christians in their vocation

From the Book of Divine Worship - The Proper: Third Part - Various Occasions - For the Ministry (Ember Days).

Collect

I. Almighty and everlasting God, by whose Spirit the whole body of thy faithful people is governed and sanctified: Receive our supplications and prayers, which we offer before thee for all members of thy holy Church, that in their vocation and ministry they may truly and godly serve thee; through our Lord and Savior Jesus Christ, who liveth and reigneth with thee, in the unity of the same Spirit, one God, now and for ever. Amen.

II. Almighty and everlasting God, by whose Spirit the whole body of your faithful people is governed and sanctified: Receive our supplications and prayers, which we offer before you for all members of your holy Church, that in their vocation and ministry they may truly and devoutly serve you; through our Lord and Savior Jesus Christ, who lives and reigns with you, in the unity of the Holy Spirit, one God, now and for ever. Amen.

Prayer over the Gifts

God of mercy, look on our offering, and by the power of this sacrament help all who believe in you to become the holy people you have called to be your own. We ask this in the name of Jesus the Lord. Amen.

Or this:

Father, you have given your Son to save the whole world by his sacrifice. By the power of this offering, help all your people to fill the world with the Spirit of Christ. Grant this through Christ our Lord. Amen.

Preface of the Season, or Preface 25 - Baptism