I sometimes think that the prayers of believers afford a stronger proof of a depraved nature, than even the profaneness of those who know not the Lord. How strange is it, that when I have the fullest convictions that prayer is not only my duty—not only necessary as the appointed means of receiving those supplies, without which I can do nothing, but likewise the greatest honor and privilege to which I can be admitted in the present life—I should still find myself so unwilling to engage in it.
However, I think it is not prayer itself that I am weary of, but such prayers as mine. How can it be accounted prayer, when the heart is so little affected,—when it is polluted with such a mixture of vile and vain imaginations—when I hardly know what I say myself—but I feel my mind collected one minute, the next, my thoughts are gone to the ends of the earth.
If what I express with my lips were written down, and the thoughts which at the same time are passing through my heart were likewise written between the lines, the whole taken together would be such an absurd and incoherent jumble—such a medley of inconsistency, that it might pass for the ravings of a lunatic. When he points out to me the wildness of this jargon, and asks, is this a prayer fit to be presented to the holy heart-searching God? I am at a loss what to answer, till it is given me to recollect that I am not under the law, but under grace—that my hope is to be placed, not in my own prayers, but in the righteousness and intercession of Jesus. The poorer and viler I am in myself, so much the more is the power and riches of His grace magnified in my behalf.
Therefore I must, and, the Lord being my helper, I will pray on, and admire his condescension and love, that He can and does take notice of such a creature—for the event shows, that those prayers which are even displeasing to myself, partial as I am in my own case, are acceptable to him, how else should they be answered? And that I am still permitted to come to a throne of grace—still supported in my walk and in my work, and that mine enemies have not yet prevailed against me, and triumphed over me, affords a full proof that the Lord has heard and has accepted my poor prayers–yea, it is possible, that those very prayers of ours of which we are most ashamed, are the most pleasing to the Lord, and for that reason, because we are ashamed of them. When we are favored with what we call enlargement, we come away tolerably satisfied with ourselves, and think we have done well.
–Jones, Robert, ed. Twenty-five Letters Hitherto Unpublished, of the Rev. John Newton (quoted by Tony Reinke in Newton on the Christian Life)