Our Father

104. There are certain cases in which we are obliged to make acts of virtue-----such as faith, hope and charity-----which some necessity, circumstance, or duty of our state of life may exact, and there are certain cases in which we must make acts of humility in our hearts.
First of all it is necessary to humble ourselves when we approach God with prayer to obtain some grace, because God does not regard, nor heed, nor impart His grace except to the humble. "The Lord looketh on the low," [Ps. cxxxvii, 6] "The prayer of the humble hath always pleased Thee," [Judith ix, 16] "God giveth grace to the humble." [James iv, 6] When therefore you come to ask God for some grace of the body or of the soul, do you always remember to practice this humility?
When we pray, and especially when we say the "Our Father," we are speaking to God; and how many times, when you are saying your prayers, do you speak to God with less respect than if you were speaking to one of your fellow creatures? How often when you are in church, which is the house of God, do you listen to a sermon, which is the Word of God, and assist at the functions of the service without any reverence?
Humility of heart, says St. Thomas, [2a 2æ, qu. clxi, art. 2] is accompanied by exterior reverence, and to be lacking in this is to lack humility, and is therefore a sin of pride, "which excludes reverence."