Lord Jesus! teach me to pray with all my heart and strength, that there may be no doubt with Thee or with me as to what I have asked. May I so know what I desire that, even as my petitions are recorded in heaven, I can record them on earth too, and note each answer as it comes. And may my faith in what Thy Word has promised be so clear that the Spirit may indeed work in me the liberty to will that it shall come. Lord! renew, strengthen, sanctify wholly my will for the work of effectual prayer.
Andrew Murray
From the book “With Christ in the School of Prayer”