'Serve' in the Bible

Should he argue with useless talkor with words that serve no good purpose?

Who is the Almighty, that we should serve Him,and what will we gain by pleading with Him?”

If they serve Him obediently,they will end their days in prosperityand their years in happiness.

serve as His sign to all mankind,so that all men may know His work.

Would the wild ox be willing to serve you?Would it spend the night by your feeding trough?