5 Bible Verses about Concubines

For it is written that Abraham had two sons, one by the slave-girl and one by the free woman. But we see that the child of the slave-girl was born in the common course of nature; but the child of the free woman in fulfilment of the promise.

Yet just as, at that time, the child born in the common course of nature persecuted the one whose birth was due to the power of the Spirit, so it is now.

nor because they are Abraham's true children. But the promise was "Through Isaac shall your posterity be reckoned."

But what says the Scripture? "Send away the slave-girl and her son, for never shall the slave-girl's son share the inheritance with the son of the free woman."

with regard to whom he had been told, "It is through Isaac that your posterity shall be traced."