The Feet: Subjugation of Enemies Expressed by Placing on Their Necks
Source: TTT
Joshua 10:24
When they had brought the kings to Joshua, he summoned all the men of Israel and said to the army commanders who had accompanied him, “Come here and put your feet on the necks of these kings.” So the commanders came forward and put their feet on their necks.
Psalm 110:1
A Psalm of David. The LORD said to my Lord: “Sit at My right hand until I make Your enemies a footstool for Your feet.”