Psalms 89:11,12 - Joseph Benson’s Commentary on the Old and New Testaments

The earth also is thine, and the fulness thereof All the creatures wherewith it is replenished, as Psalms 24:1; Psalms 50:12. Thou hast founded them They are all thy creatures, and of consequence are wholly subject to thy power and pleasure; and therefore all the monarchs and kingdoms of the earth cannot hinder thee from making good thy promise to the house and kingdom of David. The north and the south thou hast created them That is, the northern and southern parts of the world, yea, even the remotest ends thereof, though not yet known to us, were made and are ruled by thee. Tabor and Hermon Two eminent mountains in the land of Canaan; Tabor in the west, and within Jordan, Hermon on the east, and without Jordan. By which he may intend either, 1st, The western and eastern parts of the world, and so all the four parts of it are contained in this verse. Or, 2d, Only the several parts of the land of Canaan, both within Jordan and without it. And the mountains may be named rather than the valleys, because, when their fertility is expressed, the fertility of the valleys is more strongly supposed. Shall rejoice Shall be fruitful and prosperous, and so give their inhabitants cause to rejoice; in thy name In or by thy favour, and the fruits thereof.