John Calvin's Bible Commentary
Psalms 18:43
43.Thou shalt deliver me from the contentions of the people. David states, in a few words, that he had experienced the assistance of God in all variety of ways. He was in great danger from the tumults which sometimes arose among his own subjects, if God had not wonderfully allayed them, and subdued the fierceness of the people. It also happened, contrary to the general expectation, that David, as is stated in the second clause of the verse, was victorious far and wide, and overthrew the neighboring nations who had a little before discomfited all Israel by their forces. It was an astonishing renovation of things, when he not only suddenly restored to their former estate the people of Israel, who had been greatly reduced by defeat and slaughter, but also made his tributaries the neighboring nations, with whom before, on account of their hostility to the nation of Israel, it was impossible to live in peace. It would have been much to see the kingdom, after having sustained so grievous a calamity, still surviving, and after having again collected strength recovering its former state; but God, contrary to all expectation, conferred upon the people of Israel more than this; he enabled them even to subdue those who before had been their conquerors. David makes mention of both these; he tells us, in the first place, that when the people rose up in tumult against him, it was none other but God who stilled these commotions which took place within the kingdom; and, in the second place, that it was under the authority, and by the conduct and power of God, that powerful nations were subjected to him, and that the limits of the kingdom, which, in the time of Saul, had been weak and half broken, were greatly enlarged. Hence it is evident that David was assisted by God, not less with respect to his domestic affairs, that is to say, within his own kingdom, than against foreign enemies. As the kingdom of David was a type under which the Holy Spirit intended to shadow forth to us the kingdom of Christ, let us remember that, both in erecting and preserving it, it is necessary for God not only to stretch forth his arm and fight against avowed enemies, who from without rise up against him, but also to repress the tumults and strifes which may take place within the Church. This was clearly shown in the person of Christ from the beginning. In the first place, he met with much opposition from the infatuated obstinacy of those of his own nation. In the next place, the experience of all ages shows that the dissensions and strifes with which hypocrites rend and mangle the Church, are not less hurtful in undermining the kingdom of Christ, (if God do not interpose his hand to prevent their injurious effects,) than the violent efforts of his enemies. Accordingly God, to advance and maintain the kingdom of his own Son, not only overthrows before him external enemies, but also delivers him from domestic contentions; that is to say, from those within his kingdom, which is the Church. (436) In the song in 2nd Samuel, instead of these words, Thou hast made me the head of the nations, the word employed is תשמרני , tishmereni, which signifies to keep or guard, and is therefore to be understood in this sense, that David will be securely, and for a long time, maintained in possession of the kingdom. He knew how difficult it is to keep under discipline and subjection those who have not been accustomed to the yoke; and, accordingly, nothing is of more frequent occurrence than for kingdoms which have been lately acquired by conquest to be shaken with fresh commotions. But David, in the song in Samuel, declares that God, having elevated him to such a high degree of power as to make him the head of the nations, will also maintain him in the possession of the sovereignty he had been pleased to confer upon him.
A people whom I have not known shall serve me. The whole of this passage strongly confirms what I have just now touched upon, that the statements here made are not to be restricted to the person of David, but contain a prophecy respecting the kingdom of Christ which was to come. David, it is true, might have boasted that nations, with whose manners and dispositions he was only very imperfectly acquainted, were subject to him; but it is nevertheless certain, that none of the nations which he conquered were altogether unknown to him, nor removed at so great a distance as to render it difficult for him to acquire some knowledge of them. The conquests of David, therefore, and the submission of the people to him, were only an obscure figure in which God has exhibited to us some faint representation of the boundless dominion of his own Son, whose kingdom extends
“from the rising of the sun, even unto the going down of the same,”
(Malachi 1:11,)
and comprehends the whole world.