Exodus 3:19-20

19But I know that the king of Egypt awill not let you go unless compelled bby a mighty hand.
Septuagint, Vulgate; Hebrew  go, not by a mighty hand
20So dI will stretch out my hand and strike Egypt with eall the wonders that I will do in it; fafter that he will let you go.

Exodus 13:14

14 gAnd when in time to come your son asks you, ‘What does this mean?’ you shall say to him, h‘By a strong hand the Lord brought us out of Egypt, from the house of islavery.

Psalms 89:13

13You have a mighty arm;
strong is your hand, high your right hand.
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