From a prayer in The Valley of Vision:

But thou dost show thy power by my frailty,
so that the more feeble I am,
the more fit to be used,
for thou dost pitch a tent of grace
in my weakness.

Help me to rejoice in my infirmities
and give thee praise,
to acknowledge my deficiencies before others
and not be discouraged by them,
that they may see thy glory more clearly.

Teach me that I must act by a power supernatural,
whereby I can attempt things above my strength,
and bear evils beyond my strength,
acting for Christ in all,
and have his superior power to help me.