12 The frailty of nature would be much less fearful, and the moral character would grow weak and enervated with much less ease if that divine precept were not so much disregarded and treated almost with disdain. For God is easily appeased, and desires to aid men, having promised openly to give His grace in abundance to those who ask for it. Nay, He even invites men to ask, and almost insists with most loving words: "I say unto you, ask and it shall be given you: seek, and you shall find: knock, and it shall be opened to you." (14) And that we should have no fear in doing this with confidence and familiarity, he softens His words, comparing Himself to a most loving father who desires nothing so much as the love of his children. "If you then being evil, know how to give good gifts to your children: how much more wild your Father who is in heaven, give good things to them that ask Him?" (15) And this will not seem excessive to one who considers it, if the efficaciousness of prayer seemed so great to St. John Chrysostom that he thought it might be compared with the power of God; for as God created all things by His word, so man by prayer obtains what he wills. For nothing has so great a power as prayer, because in it there are certain qualities with which it pleases God to be moved. For in prayer we separate ourselves from things of earth, and filled with the thought of God alone, we become aware of our human weakness; for the same reason we rest in the embrace of our Father, we seek a refuge in the power of our Creator. We approach the Author of all good, as though we wish Him to gaze upon our weak souls, our failing strength, our poverty; and, full of hope, we implore His aid and guardianship, Who alone can give help to the weak and consolation to the infirm and miserable. With such a condition of mind, thinking but little of ourselves, as is fitting, God is greatly inclined to mercy, for God resisteth the proud, but to the humble he giveth grace. (16) Let, then, the habit of prayer be sacred to all; let soul and voice join together in prayer, and let our whole daily life agree together, so that, by keeping the laws of God, the course of our days may seem a continual ascent to Him.
Source: Exeunte Iam Anno (Vatican.va)