What rendered Jeroboam's glory possible was the immediate paralysis and imminent ruin of the power of Syria. The Israelitish king was probably on good terms with Assyria, and, during this epoch, three Assyrian monarchs had struck blow after blow against the house of Hazael. Damascus and its dependencies had received shattering defeats at the hands of Rammânirâri III., Shalmaneser III. (782-772), and Assurdan III. (772-754). Rammânirâri had made expeditions against Damascus (773) and Hazael (772), and Assurdan had invaded the Syrian domains in 767, 755, and 754. Syria had more than enough to do to hold her own in a struggle for life and death against her atrocious neighbour. With Uzziah in Judah, Jeroboam II. seems to have been on the friendliest terms; and probably Uzziah acted as a half-independent vassal, united with him by common interests. The day for Assyria to threaten Israel had not yet come. Syria lay in the path; and Assurdan III. had been succeeded by Assurnirari, who gave the world the unusual spectacle of a peaceful Assyrian king.
Jeroboam II., therefore, was free to enlarge his domains; and unless there be a little patriotic exaggeration in the extent and reality of his prowess, he exercised at least a nominal suzerainty over a realm nearly as extensive as that of David. He first advanced against Damascus, and so far "recovered" it as to make it acknowledge his rule.[307] His father Joash had won back all the Israelite cities which Benhadad III. had taken from Jehoahaz; and Jeroboam, if he did not absolutely reconquer the district east of Jordan, yet kept it in check and repressed the predatory incursions of the Emîrs of Moab and Ammon.[308] He thus extended the border of Israel to the sea of the Arabah and "the brook of willows" which divides Edom from Moab.[309] But this was not all. He pushed his conquests two hundred miles northwards of Samaria, and became lord of Hamath the Great. Ascending the gorge of the Litâny between the chains of Libanus and Antilibanus, which formed the northern limit of Israel, and following the river to its source near Baalbek, he then descended the Valley of the Orontes, which constitutes the "pass" or "entering in" of Hamath. Hamath was a town of the Hittites, the most powerful race of ancient Canaan. They were not of Semitic origin, but spoke a separate language. They were the last great branch of the once famous and dominant Khetas, whose former importance has only recently been revealed by their deciphered inscriptions. A century and a half earlier the Hamathites had thrown off the yoke of Solomon, and they governed nearly a hundred dependent cities. In alliance with the Phoenicians and Syrians, they had been valuable members of a league, which, though defeated, had long formed a barrier against the southward movement of the Assyrians. How striking was the conquest of this city by Jeroboam is shown by the title of "Hamath the Great," bestowed upon it by the contemporary prophets,[310] with whom literary prophecy begins.