'Eternal' in the Bible

So that your days, and the days of your children, may be long in the land which the Lord by his oath to your fathers said he would give them, like the days of the eternal heavens.

And the chief things of the oldest mountains, and the good things of the eternal hills,

The God of your fathers is your safe resting-place, and under you are his eternal arms: driving out the forces of your haters from before you, he said, Let destruction overtake them.