O God,
you are the light of every heart that sees you,
the Life of every soul that loves you,
the strength of every mind that seeks you.
Help me to continue steadfast in your holy love.
Be the joy of my heart;
take it all to yourself,
and remain there.
The house of my soul is narrow;
enlarge it that you may enter in.
It is ruinous, O repair it!
It displeases your sight.
I confess it, I know.
But who shall cleanse it,
to whom shall I cry but to you?
Cleanse me from my secret faults, O Lord,
and spare your servant from strange sins.
Source: St. Augustine
Source of this version: Freely modified from Prayers of the Early Church, ed. J. Manning Potts, The Upper Room, Nashville, Tennessee, © 1953 (Public domain in the U.S.)
Also found here: http://www.catholicnewsagency.com/resources/liturgy/lent/the-house-of-my-soul-is-narrow-st-augustine-of-hippo/
Also quoted in The One Year Book of Personal Prayer, © 1991 Tyndale House Publishers (April 3)
The last two lines quote Psalm 19:12-13