'Serve' in the Bible

since we have been rescuedfrom our enemies’ clutches,to serve Him without fear

And Jesus answered him, “It is written:Worship the Lord your God,and serve Him only.”

So He stood over her and rebuked the fever, and it left her. She got up immediately and began to serve them.

But Martha was distracted by her many tasks, and she came up and asked, “Lord, don’t You care that my sister has left me to serve alone? So tell her to give me a hand.”

Those slaves the master will find alert when he comes will be blessed. I assure you: He will get ready, have them recline at the table, then come and serve them.

Instead, will he not tell him, ‘Prepare something for me to eat, get ready, and serve me while I eat and drink; later you can eat and drink’?