Ahaz dying is spoken of as if he had fallen asleep. Alternate translation: "Ahaz died" (See: [[rc://en/ta/man/translate/figs-metaphor]] and [[rc://en/ta/man/translate/figs-euphemism]])
The phrase "in his place" is a metaphor meaning "instead of him." Alternate translation: "became king instead of Ahaz" (See: [[rc://en/ta/man/translate/figs-metaphor]])