'Forever' in the Bible

They sang with praise and thanksgiving to the Lord: “For He is good; His faithful love to Israel endures forever.” Then all the people gave a great shout of praise to the Lord because the foundation of the Lord’s house had been laid.

So do not give your daughters to their sons in marriage or take their daughters for your sons. Never seek their peace or prosperity, so that you will be strong, eat the good things of the land, and leave it as an inheritance to your sons forever.”