Chapter 33 — Part IV: Prayer — On Prayer in General
Section 94. We must not imitate the example of those who become tired of praying, if, after having prayed once or twice, they succeed not in obtaining the object of their prayers. We should never be weary of the duty of prayer, as we are taught by the authority of Christ the Lord and of the Apostle. And should the will at any time fail us, we should beg of God by prayer the strength to persevere.