Foot
The foot, as in Deuteronomy 33:3, signifies an inferior principle. To set the right foot on the sea and the left on the earth, as in Revelation 10:2, signifies that the Lord has the universal church under His intuition and dominion.
(Odkazy: Apocalypse Explained 10 [2]; Arcana Coelestia 2714)
Isaiah 5:29
29
Their roaring will be like a lioness. They will roar like young lions. Yes, they shall roar, and seize their prey and carry it off, and there will be no one to deliver.