'Seed of Abraham' in the Bible

Art thou not our God? Thou didst dispossess the inhabitants of this land from before thy people Israel, and thou. wilt give it to the seed of Abraham thy beloved forever.

The seed of Abraham his servant, the sons of Jacob his chosen.

And thou, Israel, my servant Jacob whom I chose thee, the seed of Abraham my beloved:

Also the seed of Jacob, and David my servant, will I reject from taking from his seed those ruling over the seed of Abraham, Isaak, and Jacob for I will turn back their captivity, and I compassionated them.

Neither that the seed of Abraham, are all children: but, In Isaac shall the seed be called to thee.

For certainly he lays not hold of angels; but of the seed of Abraham he lays hold.