2 Kings 16:5,6 - Joseph Benson’s Commentary on the Old and New Testaments

But could not overcome him Because God, of his own mere grace, undertook the protection of Judah, as he promised to do, and disappointed the designs and hopes of their enemies, Isaiah 7:1-9. At that time Rezin recovered Elath Took it from the Jews, who had not long been in possession of it, having but lately recovered it, with the rest of Edom: see on 2 Kings 14:22. So that, though the confederate kings of Syria and Israel failed, through the interference of Divine Providence, in their attempts on Jerusalem, the former made himself master of this considerable and very commodious port on the Red sea.