To make thine enemies thy footstool", as in Psalm 110:1, signifies to subjugate and keep under the hells. Here a footstool signifies the lowest region under the heavens -- that is to say, the hells. A footstool, as in Psalm 132:7, signifies the Lord's church in the earths.

(Odkazy: Apocalypse Explained 607)

'Being clothed in sackcloth' signifies lamentation because of the devastation of truth in the church. In Revelation 6:12, 'sackcloth' relates to destroyed good.

(Odkazy: Apocalypse Revealed 492)