“O Lord,
help us always
to seek your kingdom and righteousness.
Give us all other things we need as well;
through Jesus Christ our Lord.”

Found at A Collection of Prayers with the following attributions:

• Source: Leonine Sacramentary, Gelasian Sacramentary

• Source of this version:  Freely modified from Ancient Collects, and Other Prayers, ed. William Bright, 1902, p. 89 #1

• Also found here: Prayers Ancient and Modern by Mary Wilder Tileston, Boston, Little Brown, 1914, p. 114 #2

• Graphic, Gelasian Sacramentary, from Wikipedia.com