# to the day of his death

"until he died" or "the rest of his life"

# lived in a separate house

This indicates that he lived away from other houses and other people.

# he was cut off from the house of Yahweh

Here being "cut off" from Yahweh's house represents being excluded from the temple. Alternate translation: "he was excluded from the house of Yahweh" or "he was not allowed to go to the temple" (See: [[rc://en/ta/man/translate/figs-metaphor]])

# Jotham, his son, was over the king's house

Here being over something represents having responsibility or authority for it. Alternate translation: "Jotham, his son, was responsible for the king's house" or "Jotham, his son, was in charge of the palace" (See: [[rc://en/ta/man/translate/figs-metaphor]])

# the king's house

This refers to the king's palace, which the king was no longer living in.