Adam Clarke

Till his enemies be made his footstool - Till all that oppose his high priesthood and sacrificial offering shall be defeated, routed, and confounded; and acknowledge, in their punishment, the supremacy of his power as universal and eternal King, who refused to receive him as their atoning and sanctifying Priest. There is also an oblique reference here to the destruction of the Jews, which was then at hand; for Christ was about to take away the second with an overwhelming flood of desolations.