'Serve' in the Bible

“But if you or your sons turn away from following Me, and do not keep My commandments and My statutes which I have set before you, but go and serve other gods and worship them,

“Your father made our yoke (burden) heavy; so now lighten the hard labor and the heavy yoke your father imposed on us, and we will serve you.”

They spoke to him, saying, “If you will be a servant to this people today, and will serve them and grant their request, and speak good words to them, then they will be your servants forever.”