Psalms 68:16-17
15, 16. Mountains are often symbols of nations (Ps 46:2; 65:6). That of Bashan, northeast of Palestine, denotes a heathen nation, which is described as a "hill of God," or a great hill. Such are represented as envious of the hill (Zion) on which God resides;
17. and, to the assertion of God's purpose to make it His dwelling, is added evidence of His protecting care. He is described as in the midst of His heavenly armies—
thousands of angels—literally, "thousands of repetitions," or, "thousands of thousands"—that is, of chariots. The word "angels" was perhaps introduced in our version, from De 33:2, and Ga 3:19. They are, of course, implied as conductors of the chariots. as . . . Sinai, in the holy place—that is, He has appeared in Zion as once in Sinai.Isaiah 40:4
4. Eastern monarchs send heralds before them in a journey to clear away obstacles, make causeways over valleys, and level hills. So John's duty was to bring back the people to obedience to the law and to remove all self-confidence, pride in national privileges, hypocrisy, and irreligion, so that they should be ready for His coming (Mal 4:6; Lu 1:17).
crooked—declivities.Isaiah 41:15
15. God will make Israel to destroy their enemies as the Eastern corn-drag (Isa 28:27, 28) bruises out the grain with its teeth, and gives the chaff to the winds to scatter.
teeth—serrated, so as to cut up the straw for fodder and separate the grain from the chaff. mountains . . . hills—kingdoms more or less powerful that were hostile to Israel (Isa 2:14).Isaiah 49:11
11. my—All things are God's.
mountains a way—I will remove all obstructions out of the way (Isa 40:4). exalted—that is, cast up (Isa 57:14; 62:10); for instance, over valleys. VITRINGA explains "mountains" as great kingdoms, Egypt, Syria, &c., subjected to Rome, to facilitate the spreading of the Gospel; "highways," the Christian doctrine wherein those who join the Church walk, and which, at the time of Constantine, was to be raised into prominence before all, and publicly protected (Isa 35:8, 9).Ezekiel 35:2
2. Mount Seir—that is, Idumea (Ge 36:9). Singled out as badly pre-eminent in its bitterness against God's people, to represent all their enemies everywhere and in all ages. So in Isa 34:5; 63:1-4, Edom, the region of the greatest enmity towards God's people, is the ideal scene of the final judgments of all God's foes. "Seir" means "shaggy," alluding to its rugged hills and forests.