'Served' in the Bible

Now Eli was very old; and he heard about everything that his sons were doing to all [the people of] Israel, and how they were lying with the women who served at the entrance to the Tent of Meeting (tabernacle).

So the Israelites removed the Baals and the Ashtaroth and served the Lord alone.

They cried out to the Lord, saying, ‘We have sinned because we have abandoned (rejected) the Lord and have served the Baals and the Ashtaroth; but now rescue us from the hands of our enemies, and we will serve You.’

Then David came to Saul and attended him. Saul loved him greatly and [later] David became his armor bearer.