'Seed' in the Bible

Concerning his Son Jesus Christ our Lord, which was made of the seed of David according to the flesh;

For the promise, that he should be the heir of the world, was not to Abraham, or to his seed, through the law, but through the righteousness of faith.

Therefore it is of faith, that it might be by grace; to the end the promise might 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 against hope believed in hope, that he might become the father of many nations; according to that which was spoken, So shall thy seed be.

Neither, because they are the seed of Abraham, are they all children: but, In Isaac shall thy seed be called.

That is, They which are the children of the flesh, these are not the children of God: but the children of the promise are counted for the seed.

And as Esaias said before, Except the Lord of Sabaoth had left us a seed, we had been as Sodoma, and been made like unto Gomorrha.

I say then, Hath God cast away his people? God forbid. For I also am an Israelite, of the seed of Abraham, of the tribe of Benjamin.