'Forever' in the Bible

If only it would really be their desire to fear me and obey all my commandments in the future, so that it may go well with them and their descendants forever.

You must gather all of its plunder into the middle of the plaza and burn the city and all its plunder as a whole burnt offering to the Lord your God. It will be an abandoned ruin forever -- it must never be rebuilt again.

Secret things belong to the Lord our God, but those that are revealed belong to us and our descendants forever, so that we might obey all the words of this law.

For I raise up my hand to heaven, and say, 'As surely as I live forever,