'Everlasting' in the Bible

And God said, This is the sign of the covenant that I set between me and you and every living soul that is with you, for everlasting generations:

And the bow shall be in the cloud; and I will look upon it, that I may remember the everlasting covenant between God and every living soul of all flesh that is upon the earth.

And I will establish my covenant between me and thee, and thy seed after thee in their generations, for an everlasting covenant, to be a God to thee, and to thy seed after thee.

And I give to thee, and to thy seed after thee, the land of thy sojourning, all the land of Canaan, for an everlasting possession; and I will be a God to them.

He who is born in thy house, and he who is bought with thy money, must be circumcised; and my covenant shall be in your flesh for an everlasting covenant.

And God said, Sarah thy wife shall indeed bear thee a son; and thou shalt call his name Isaac; and I will establish my covenant with him, for an everlasting covenant for his seed after him.

and he said to me, Behold, I will make thee fruitful and multiply thee, and I will make of thee a company of peoples; and will give this land to thy seed after thee for an everlasting possession.

The blessings of thy father surpass the blessings of my ancestors, Unto the bounds of the everlasting hills: They shall be on the head of Joseph, And on the crown of the head of him that was separated from his brethren.