In Leviticus 21:20, 22:22, this signifies one of the effects of the profanation of truth. (Apocalypse Explained 962[10])

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)