'Ever' in the Bible

Because of what you have done, the disease of Naaman the leper will take you in its grip, and your seed after you, for ever. And he went out from before him a leper as white as snow.

But it was not the Lord's purpose to send destruction on Judah, because of David his servant, to whom he had given his word that he would have a light for ever.

And the rules and the orders and the law which he put in writing for you, you are to keep and do for ever; you are to have no other gods.

He put the image of Asherah which he had made in the house of which the Lord had said to David and to Solomon his son, In this house, and in Jerusalem, the town which I have made mine out of all the tribes of Israel, I will put my name for ever.