en_tn/2ch/08/12.md

his altar that he had built

The author writes about Solomon having his workers build the altar as if he himself had built it. AT: "on Yahweh's altar that Solomon had his workers build" or "the Yahweh's altar that he had commanded his workers to build" (See: rc://en/ta/man/translate/figs-metonymy)

his altar

"Yahweh's altar" or "the altar of Yahweh"

the portico

"the temple porch" or "the entrance to the temple." This was a covered porch supported by columns, attached to the front of the temple.