'Ever' in the Bible

And they sang together by course in praising and giving thanks unto the LORD; because he is good, for his mercy endureth for ever toward Israel. And all the people shouted with a great shout, when they praised the LORD, because the foundation of the house of the LORD was laid.

Accordingly, with your approval we suggest that a search be conducted within the king's treasury at Babylon to verify whether or not King Cyrus ever issued such a decree to reconstruct this Temple of God in Jerusalem. Then please notify us concerning the king's pleasure in this matter.

Now therefore give not your daughters unto their sons, neither take their daughters unto your sons, nor seek their peace or their wealth for ever: that ye may be strong, and eat the good of the land, and leave it for an inheritance to your children for ever.