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.

(Reference: Apocalypse Explained 10 [2]; Arcana Coelestia 2714)

In Numbers 22:4, 7 and Jeremiah 48:38, Moab signifies people in natural good who easily permit themselves to be led astray. (Arcana Coelestia 3242[3], 10184[2]) In an opposite sense, it signifies people who adulterate what is good. 'Moab and Ammon' signify people with whom good is adulterated and truth falsified.

(Reference: Arcana Coelestia 3242)