Fill Our Hearts with the Gifts of Your Grace

Lord Jesus Christ,
true God and truly human,
you do not change,
and you are holy in all your works.
Remove all our unbelief and doubt,
and fill our hearts with the gifts of your grace
that we may believe and know you as true God,
and by your miracles and mighty works
know you as Savior of all.

Source: Mozarabic, freely modified from  Ancient Collects, ed. William Bright, p. 75.4. Also in  Mozarabic Collects, ed. Rev. Chas. R. Hale, New York, 1881, p. 27 #3 (Easter 4)

“true God and fully human” is a reference to 1 Timothy 2:5

“you do not change” is a reference to Malachi 3:6, Hebrews 13:8

“Remove all our unbelief and doubt” is a reference to Mark 9:24