'All the Seed' in the Bible

and I will cast you out of my sight, as I have cast out all your brethren, all the seed of Ephraim.

Like as this ordinance shall never be taken out of my sight, sayeth the LORD: So shall the seed of Israel never cease, but always be a people before me.

Thus saith the LORD; If heaven above can be measured, and the foundations of the earth searched out beneath, I will also cast off all the seed of Israel for all that they have done, saith the LORD.