'Servant' in the Bible

Jesus answered them, Verily, verily, I say unto you, Whosoever committeth sin is the servant of sin.

And the servant abideth not in the house for ever: but the Son abideth ever.

If any man serve me, let him follow me; and where I am, there shall also my servant be: if any man serve me, him will my Father honour.

Verily, verily, I say unto you, The servant is not greater than his lord; neither he that is sent greater than he that sent him.

Henceforth I call you not servants; for the servant knoweth not what his lord doeth: but I have called you friends; for all things that I have heard of my Father I have made known unto you.

Remember the word that I said unto you, The servant is not greater than his lord. If they have persecuted me, they will also persecute you; if they have kept my saying, they will keep yours also.

Then Simon Peter having a sword drew it, and smote the high priest's servant, and cut off his right ear. The servant's name was Malchus.