'Seed' in the Bible

concerning his Son, who was born of the seed of David according to the flesh,

For the promise to Abraham and to his seed that he should be heir of the world wasn't through the law, but through the righteousness of faith.

For this cause it is of faith, that it may be according to grace, to the end that the promise may be sure to all the seed, not to that only which is of the law, but to that also which is of the faith of Abraham, who is the father of us all.

Who in hope believed against hope, to the end that he might become a father of many nations, according to that which had been spoken, "So will your seed be."

Neither, because they are Abraham's seed, are they all children. But, "In Isaac will your seed be called."

That is, it is not the children of the flesh who are children of God, but the children of the promise are counted as a seed.

As Isaiah has said before, "Unless the Lord of Armies had left us a seed, we would have become like Sodom, and would have been made like Gomorrah."