Psalms 110:2

2Jehovah shall send out of Zion the scepter of thy power. The Psalmist not only confirms, in different terms, what he stated above, but also adds, that Christ’s kingdom shall be vastly extended, because God would make his scepter stretch far and wide. David did indeed render not a few of the surrounding nations tributaries to him, but still his kingdom, when contrasted with other monarchies, was always confined within narrow limits. There is in the words an implied contrast, as if he had said, that Christ should not reign as King upon mount Zion only, because God would cause his power to extend to the remotest regions of the earth. And for this reason it is denominated the scepter of his power, (323) and how astonishing was it, that though the whole world was leagued in opposition to Christ’s kingdom, it yet continued to spread and prosper. In a word, David here animates the hearts of the godly against being dispirited by the foolhardy attempts on the part of those who presume to introduce discord and disorder into the kingdom of Christ; for he shows them that God will put forth his invincible power for the maintaining of the glory of his sacred throne. What time, then, our minds are agitated by various commotions, let us learn confidently to repose on this support, that however much the world may rage against Christ, it will never be able to hurl him from the right hand of the Father. Moreover, as he does not reign on his own account, but for our salvation, we may rest assured that we will be protected and preserved from all ills under the guardianship of this invincible King. Doubtless our condition in this world is connected with many hardships; but as it is the will of God that Christ’s kingdom should be encompassed with many enemies, and that too with the design of keeping us in a state of constant warfare, it becomes us to exercise patience and meekness; and assured of God’s aid, boldly to set at nought the rage of the whole world. From this passage we are instructed as to the calling of the Gentiles. Because, if God had not told us in this place respecting the extension of Christ’s kingdom, we would not this day have been classed among his people. But as the wall is broken down, (Ephesians 2:14) and the gospel promulgated, we have been gathered together into the body of the Church, and Christ’s power is put forth to uphold and defend us.