Merciful Lord,
Comforter and Teacher of your faithful people,
increase in your Church the desires you have given.
Strengthen the hearts of those who hope in you,
and show them the depth of your promises.
Lead all your adopted children to see with the eyes of faith,
and help them wait patiently for the light that is now hidden;
through Jesus Christ our Lord. Amen.
Source: Ambrose, d. 397
Source of this version: Freely modified from Prayers of the Early Church, edited by J. Manning Potts, 1953