'Seed of Abraham' in the Bible

They responded to Him, we are the seed of Abraham, and have never been in bondage to any one: How do You say, that you shall be free?

I know ye are the seed of Abraham; but you seek to kill me, because my word has no place in you.

neither are the children all the seed of Abraham; but in Isaac shall thy seed be called;

Then I say, Did God cast away his people? it could not be so. For I am indeed an Israelite, of the seed of Abraham, of the tribe of Benjamin.

Are they Hebrews? I am also. Are they Israelites? I am also. Are they the seed of Abraham? I am also.

But if you belong to Christ then you are the seed of Abraham, heirs according to the promise.

For not yet does he take upon himself the nature of angels, but he takes upon himself the seed of Abraham.