Bible Verses About Servants: By birth

When Abram heard that his brother was taken, he brought forth of them that were borne and brought vp in his house, three hundreth and eighteene, and pursued them vnto Dan.

Beholde, Lord: for I am thy seruant, I am thy seruant, and the sonne of thine handmaide: thou hast broken my bondes.

Is Israel a seruaunt, or is hee borne in the house? why then is he spoiled?