Many years ago, a Scottish Jesuit priest expressed to John Knox, his great frustration and confusion over the inconsistencies of his life. The following was Knox's suggested prayer:
Lord Jesus, receive my spirit, and put an end at Thy good pleasure to this my miserable life; for justice and truth are not to be found among the sons of men--Be merciful unto me, O Lord--Now after many battles, I find nothing in me but vanity and corruption. For in quietness I am negligent, in trouble impatient, tending to desperation--pride and ambition assault me on the one part, covetousness and malice trouble me on the other, briefly, Oh Lord, the affections of the flesh do almost suppress the operation of Thy Spirit--In none of the aforesaid I do delight; but I am troubled, and that sore against the desire of my inward man which sobs for my corruption, and would repose in Thy mercy alone; to which I claim, and that in the promise that Thou hast made to all penitent sinners of whose number I profess myself to be one.
From Donnie Martin's Sermon "Longing For the Likeness of the Lord"