en_tn_lite_do_not_use/1sa/02/27.md

man of God

This phrase usually means a prophet of Yahweh.

Did I not reveal myself

AT: "You should know that I revealed myself" (See: rc://en/ta/man/translate/figs-rquestion)

to the house of your ancestor

"Ancestor" is usually explained as their forefather, Aaron, who began this family line ("house"). See the UDB.

to go up to my altar, to burn incense

This is an offering to Yahweh.