en_tn/2ki/12/18.md

Jehoshaphat and Jehoram and Ahaziah, his fathers

These men were previous kings of Judah. (See: rc://en/ta/man/jit/figs-metaphor)

set apart

"dedicated"

the gold that was found in the storerooms

"the gold that was stored in the storerooms"

Then Hazael went away from Jerusalem

The gifts Joash gave Hazael convinced him not to attack Jerusalem. This can be made explicit. Alternate translation: "So Hazael stopped attacking Jerusalem and left"