'Footstool' in the Bible

Then David the king stood up upon his feet, and said, Hear me, my brethren, and my people: As for me, I had in mine heart to build an house of rest for the ark of the covenant of the LORD, and for the footstool of our God, and had made ready for the building:

And there were six steps to the throne, with a footstool of gold, which were fastened to the throne, and stays on each side of the sitting place, and two lions standing by the stays:

Exalt ye the LORD our God, and worship at his footstool; for he is holy.

{A Psalm of David.} The LORD said unto my Lord, Sit thou at my right hand, until I make thine enemies thy footstool.

We will go into his tabernacles: we will worship at his footstool.

Thus saith the LORD, The heaven is my throne, and the earth is my footstool: where is the house that ye build unto me? and where is the place of my rest?

How hath the Lord covered the daughter of Zion with a cloud in his anger, and cast down from heaven unto the earth the beauty of Israel, and remembered not his footstool in the day of his anger!