Christ's Mediatorial Kingdom and the angels

As Mediator he [Christ] is carrying on a glorious scheme for the recovery of man, and all parts of the universe are interested or concern themselves in this grand event; and therefore they are all subjected to him, that he may so manage them as to promote this end, and baffle and overwhelm all opposition.

The elect angels rejoice in so benevolent a design for peopling their mansions, left vacant by the fall of so many of their fellow-angels, with colonies transplanted from our world, from a race of creatures that they had given up for lost. And therefore Christ, as a Mediator, is made the head of all the heavenly armies, and he employs them as his ministering spirits, to minister to them that are heirs of salvation. These glorious creatures are always on the wing ready to discharge his orders in any part of his vast empire, and delight to be employed in the services of his mediatorial kingdom.

This is also an event in which the fallen angels deeply interest themselves; they have united all their force and art for near six thousand years to disturb and subvert his kingdom, and blast the designs of redeeming love; they therefore are all subjected to the control of Christ, and he shortens and lengthens their chains as he pleases, and they cannot go a hair's breadth beyond his permission.

From The Mediatorial Kingdom and Glories of Jesus Christ by Samuel Davis, a Virginia preacher of the Presbytery of Hanover in the mid1700s.