en_tn_lite_do_not_use/2sa/20/25.md

Sheva

This is the name of a man. (See: rc://en/ta/man/jit/translate-names)

were priests

They were probably officials who advised David on matters to do with the kingdom and were not involved in temple worship. See the footnote at 2 Samuel 8:18, where the same word is used.