Roman Catechism 3.30

Chapter 3 — Part I: The Creed — Article I: I Believe in God, the Father Almighty, Creator of Heaven and Earth

Section 30. "Almighty" — The Sacred Scriptures, in order to mark the piety and devotion with which the most holy name of God is to be adored, usually express His supreme power and infinite majesty in a variety of ways; but the pastor should, first of all, teach that almighty power is most frequently attributed to Him. Thus He says of Himself: I am the almighty Lord and again, Jacob when sending his sons to Joseph thus prayed for them: May my almighty God make him favourable to you. In the Apocalypse also it is written: The Lord God, who is, and who was, and who is to come, the almighty; and in another place the last day is called the great day of the almighty God. Sometimes the same attribute is expressed in many words; thus: No word shall be impossible with God; Is the hand of the Lord unable? Thy power is at hand when thou wiIt, and so on.