For he must reign,.... That is, Christ must reign; he is set as King over God's holy hill of Zion; he is King of saints; he is made and declared to be both Lord and Christ; he is exalted at the right hand of God as a Prince, where he sits and rules and reigns; and his sitting at God's right hand is here explained by his reigning, for reference is had to Ps 110:1 he must reign because it is the unalterable will, and unchangeable decree and purpose of God, that he should reign; and because he has promised it, and prophesied of it; and because the state and condition of his people require it, who otherwise could not be saved, nor dwell safely: and so he must and will,till he hath put all enemies under his feet; and made them his footstool; meaning either all the elect of God, who in a state of nature are enemies in their minds, by wicked works, to himself and to his Father; whom he conquers by his grace, subdues their rebellious wills, of enemies makes them friends, brings them to his feet, and to a subjection to his sceptre, to his Gospel and ordinances; and he must reign till he has brought every elect soul into such an obedience to himself: or rather antichrist and his followers, and all wicked and ungodly men, with Satan and his angels; who will be destroyed with the breath of his mouth, and the brightness of his coming; and will be cast down by him into hell, and there be ever objects of his wrath and vengeance: and till all this is done he must reign; not that he shall cease to reign afterwards, but that he shall reign notwithstanding these enemies of his and his people, who would not have him to reign over them; and will reign until they are subdued or destroyed; and when they are entirely vanquished and overcome, who can doubt of his reigning then?
or what, or who will there be to hinder it?