'Servant girl' in the Bible

Now Peter was sitting outside in the courtyard, and one servant girl came to him, saying, Thou also were with Jesus the Galilean.

And the servant girl having seen him, she began again to say to those who stood by, This man is from them.

But a certain servant girl having seen him sitting near the light, and having looked intently upon him, she said, This man was also with him.

Therefore the servant girl (the doorkeeper) says to Peter, Are thou not also of this man's disciples? That man says, I am not.

And when Peter knocked the door of the gate, a servant girl named Rhoda came to hearken.

And it came to pass, as we were going to prayer, for a certain servant girl having a spirit of divination to meet us, who brought her masters much business by soothsaying.

For it is written that Abraham had two sons, one from the servant girl, and one from the freewoman.

But in fact, the man from the servant girl was born according to flesh, but the man from the freewoman through promise.

Nevertheless, what does the scripture say? Send away the servant girl and her son, for the son of the servant girl will, no, not inherit with the son of the freewoman.

So then, brothers, we are not children of a servant girl, but of the freewoman.