Charles Ellicott Commentary Isaiah 37:24

"By thy servants hast thou defied the Lord, and hast said, With the multitude of my chariots am I come up to the height of the mountains, to the innermost parts of Lebanon; and I will cut down the tall cedars thereof, and the choice fir-trees thereof; and I will enter into its farthest height, the forest of its fruitful field;" — Isaiah 37:24 (ASV)

By the multitude of my chariots. —The words refer apparently to the taunt of Isaiah 36:8. The inscriptions of the Assyrian king are full of like boasts. Shalmaneser, “Trackless paths and difficult mountains ... I penetrated” (Records of the Past, iii. 85); and Assumacirpal, “Rugged mountains, difficult paths, which for the passage of chariots were not suited, I passed” (Ibid. p. 43).

To the sides of Lebanon. —The passage of Lebanon was not necessarily implied in Sennacherib’s invasion of Palestine. Possibly the words had become a kind of proverb for surmounting obstacles. Lebanon and Carmel are joined together, as in Isaiah 33:9.