Good Friday Prayer

O God, Son of God,
you suffered for us,
the righteous for the unrighteous.
Save us by the shame of your Passion,
and clothe us with the robe of your righteousness.
Through the suffering and death you did not deserve,
we have escaped the punishment our sins have deserved.
Amen.

Source: Freely modified from Mozarabic Collects, ed. Rev. Chas. R. Hale, New York, 1881, p. 25 #1

“the righteous for the unrighteous” is a reference to 1 Peter 3:18

“robe of righteousness” is a reference to  Job 29:14, Isaiah 61:10, Galatians 3:27

“Through the suffering and death you did not deserve…” may be a reference to  Isaiah 53:5