El Shaddai, commonly translated God Almighty, speaks of the awesome power of our God. Nothing is too difficult for Him, too hard for Him. His arm is never too short. El Shaddai is introduced in Genesis 17:1.

Genesis 17:1. And when Abram was ninety-nine years old, the LORD* appeared to Abram, and said to him, “I AM Almighty God! Walk before Me and be innocent. 2. And I will give My covenant between Me and you and will multiply you exceedingly.” 3. And Abram fell on his face and God talked with him saying, 4. “As for Me, behold, My covenant is with you, and you will be a father of many nations.”