Prayer for Steadfastness

Grant me, I beseech You, almighty and most merciful God, fervently to desire, wisely to search out, and perfectly to fulfill, all that is well-pleasing unto You. Order You my worldly condition to the glory of Your name; and, of all that You require me to do, grant me the knowledge, the desire, and the ability, that I may so fulfill it as I ought, and may my path to You, I pray, be safe, straightforward, and perfect to the end.

Give me, O Lord, a steadfast heart, which no unworthy affection may drag downwards; give me an unconquered heart, which no tribulation can wear out; give me an upright heart, which no unworthy purpose may tempt aside.

Bestow upon me also, O Lord my God, understanding to know You, diligence to seek You, wisdom to find You, and a faithfulness that may finally embrace Thee. Amen.

Saint Thomas Aquinas