Exodus 6:6

With a stretched-out arm, i.e. my almighty power. A metaphor from a man that stretcheth out his arm, and puts forth all his strength to give the greater blow. With great judgments, i.e. punishments justly inflicted upon them, as the word judging and judgments is oft used, as Genesis 15:14 2 Chronicles 20:12 Proverbs 19:29.