"as you know our weakness, so we may know your power to save"

"For the Tempted", William Bright, Ancient collects and other prayers: selected for devotional use from various rituals, with an appendix, on the collects in the prayer-book (1862 [1857]), 237-238 (i.e. among the "few Collects constructed in imitation of the ancient model" (233)):

Merciful and faithful High Priest, Who didst deign for us to be tempted of Satan; make speed to aid Thy servants who are assaulted by manifold temptations; and as Thou knowest their several infirmities, let each one find Thee mighty to save, Who livest, &c.

First Sunday in Lent, Book of common prayer (1979), Traditional:
Almighty God, whose blessed Son was led by the Spirit to be tempted of Satan:  Make speed to help thy servants who are assaulted by manifold temptations; and, as thou knowest their several infirmities, let each one find thee mighty to save; through. . . .

First Sunday in Lent, Book of common prayer (1979), Contemporary:
Almighty God, whose blessed Son was led by the Spirit to be tempted by Satan:  Come quickly to help us who are assaulted by many temptations; and, as you know the  weaknesses of each of us, let each one find you mighty to save; through. . . .

Prayers and Collects for Lent and Holy Week, United Methodist book of worship (1992):
Almighty God, your blessed Son was led by the Spirit
      to be tempted by Satan.
Come quickly to help us who are assaulted by many temptations.
And, as you know the weaknesses of each of us,
      let each one find you mighty to save;
through. . . .

First Sunday in Lent, Book of common worship (1993), PCUSA:
Almighty God,
your Son fasted forty days in the wilderness,
and was tempted as we are but did not sin.
Give us grace to direct our lives
in obedience to your Spirit,
that as you know our weakness,
so we may know your power to save;
through. . . .

First Sunday of Lent, Common worship: services and prayers for the Church of England (2000):
Almighty God,
whose Son Jesus Christ fasted forty days in the wilderness,
and was tempted as we are, yet without sin:
give us grace to discipline ourselves in obedience to your Spirit;
and, as you know our weakness,
so may we know your power to save;
through. . . .