<p>9:7 <em>Neither, because they are Abraham's seed are they all children, but: In Isaac shall your seed be called</em>- Physical descent from Abraham did not make anyone the true &quot;children&quot; of Abraham; because Ishmael also was the seed of Abraham, but was not his &quot;child&quot; in the sense that he did not walk according to the faith of Abraham in his future Messianic seed. That promise was fulfilled through Isaac. So within the statement &quot;In Isaac shall your seed be called&quot; there is the implication that the &quot;seed&quot; of Abraham is to be understood in two senses- referring to the literal children of Abraham, and secondly, specifically referring to the Messiah. Abraham's true seed was therefore one man- the Lord Jesus. Only those &quot;in Him&quot; were the seed to which the promises had reference.</p>