Nahum 1:15

“Behold upon the mountains, etc.] Of the land of Israel, as the Targum; or those about Jerusalem: the feet of him that bringeth good tidings; see how they come one after another with the news of the havoc and slaughter made in the army of Sennacherib by an angel in one night; of his flight, and of the dealt, of him by the hands of his two sons; and, after that, of the destruction of Nineveh, and of the whole Assyrian empire; all which were good tidings to the Jews, to whom the Assyrians were implacable enemies, and whose power the Jews dreaded; and therefore it must be good news to them to hear of their defeat and ruin, and the messengers that brought it must be welcome to them: that…”

“Behold upon the mountains, the feet of him that bringeth good tidings, that publisheth peace - From mountain-top to mountain-top by beacon-fires they spread the glad tidings. Suddenly the deliverance comes, sudden its announcement. “Behold!” Judah, before hindered by armies from going up to Jerusalem, its cities taken 2 Kings 18:13, may now again “keep the feasts” there, and “pay the vows,” which “in trouble she promised;” “for the wicked one,” the ungodly Sennacherib, “is utterly cut off, he shall no more pass through thee;” “the army and king and empire of the Assyrians have perished.” But the words of prophecy cannot be bound down to this. These large promises, which, as to this world,…”

“Keep - Be careful to serve God. Thy vows - Made in thy distress. The wicked - That wicked oppressor, Sennacherib. Next: Nahum Chapter 2”

“upon: Isa 40:9, Isa 40:10, Isa 52:7; Luk 2:10, Luk 2:14; Act 10:36; Rom 10:15 keep: Heb. feast perform: Psa 107:8, Psa 107:15, Psa 107:21, Psa 107:22, Psa 116:12-14, Psa 116:17, Psa 116:18 the wicked: Heb. Belial, Nah 1:11, Nah 1:12 no: Isa 37:36-38 he: Nah 1:14; Isa 29:7, Isa 29:8 Nahum 1:1”

“Judah hears the glad tidings, that its oppressor is utterly destroyed. A warlike army marches against Nineveh, which that city cannot resist, because the Lord will put an end to the oppression of His people. Nah 1:15. "Behold, upon the mountains the feet of the messengers of joy, proclaiming salvation! Keep thy feasts, O Judah; pay thy vows: for the worthless one will no more go through thee; he is utterly cut off." The destruction of the Assyrian, announced in Nah 1:14, is so certain, that Nahum commences the description of its realization with an appeal to Judah, to keep joyful feasts, as the miscreant is utterly cut off. The form in which he utters this appeal is to point to messengers…”