'Slave' in the Bible

‘Now if a man lies carnally with a woman who is a slave acquired for another man, but who has in no way been redeemed nor given her freedom, there shall be punishment; they shall not, however, be put to death, because she was not free.

But if a priest buys a slave as his property with his money, that one may eat of it, and those who are born in his house may eat of his food.

For they are My servants whom I brought out from the land of Egypt; they are not to be sold in a slave sale.