Psalms 72:2

2.He shall judge thy people in righteousness. Some read this in the form of a wish — O that he may judge, etc. Others retain the future tense; and thus it is a prophecy. But we will come nearer the correct interpretation by understanding something intermediate, as implied. All that is afterwards spoken, concerning the king, flows from the supposition, that the blessing prayed for in the first verse is conferred upon him — from the supposition that he is adorned with righteousness and judgment. The prayer, then, should be explained thus: Govern our king, O God! that he may judge. Or in this way, When thou shalt have bestowed upon the king thy righteousness, then he will judge uprightly. To govern a nation well, is an endowment far too excellent to grow out of the earth; but the spiritual government of Christ, by which all things are restored to perfect order, ought much more to be considered a gift of heaven. In the first clause of the verse, David speaks of the whole people in general. In the second clause, he expressly mentions the poor, who, on account of their poverty and weakness, have need of the help of others, and for whose sake kings are armed with the sword to grant them redress when unjustly oppressed. Hence, also, proceeds peace, of which mention is made in the third verse. The term peace being employed among the Hebrews to denote not only rest and tranquillity, but also prosperity, David teaches us that the people would enjoy prosperity and happiness, when the affairs of the nation were administered according to the principles of righteousness. The bringing forth of peace is a figurative expression taken from the fertility of the earth. (125) And when it is said that the mountains and hills shall bring forth peace, (126) the meaning is, that no corner would be found in the country in which it did not prevail, not even the most unpromising parts, indicated by the mountains, which are commonly barren, or at least do not produce so great an abundance of fruits as the valleys. Besides, both the word peace and the word righteousness are connected with each clause of the verse, and must be twice repeated, (127) the idea intended to be conveyed being, that peace by righteousness (128) should be diffused through every part of the world. Some read simply righteousness, instead of In righteousness, supposing the letter ב , beth, to be here redundant, which does not, however, appear to be the case. (129)