What was the consequence of Isaac's birth in terms of the Hebrew Bible's lineage?

Isaac's birth had significant consequences for the lineage in the Hebrew Bible, as he is regarded as the son of Abraham and Sarah, and a pivotal figure in the continuation of Abraham's covenant with God. His birth represents the fulfillment of God's promise to Abraham that he would be the father of many nations, and through Isaac, that lineage is further established.

Isaac's role extends beyond just being Abraham's son; he became the father of Jacob, who later was named Israel. This establishes him as a key ancestral figure in the Hebrew tradition, keeping the lineage of the Abrahamic covenant alive. The ancestry traced through Isaac ultimately leads to the twelve tribes of Israel, which play a crucial role throughout the biblical narrative.

The other options do not accurately reflect Isaac's role. He was not the first king of Israel, as that was Saul. He did not lead the Exodus; that role is attributed to Moses. Although altars were important in early worship practices, Isaac is not specifically noted for building the first altar in the biblical text; his father Abraham is largely recognized for this. Thus, Isaac's critical position in continuing Abraham's line underscores why this choice is correct.