en_tn_lite_do_not_use/1ki/01/39.md

took the horn of oil out of the tent

This means the priest took the special animal horn filled with olive oil that was kept in Yahweh's special tent.

took the horn of oil

Possible meanings are 1) the horn of an animal filled with olive oil or 2) a container that had replaced the original horn, but the people still called it a horn. Alternate translation: "took a container of oil"

all the people

This is a generalization. (See: rc://en/ta/man/jit/figs-hyperbole)