'Everlasting' in the Bible

Nevertheless I will remember my covenant with thee in the days of thy youth, and I will establish unto thee an everlasting covenant.

"This is what the Lord GOD says: "Because Philistia has made it their practice to carry out retribution, accompanied by extraordinary malice in their personal vendettas vendettas that spring from their everlasting hostility

Because you have had everlasting enmity and have delivered the sons of Israel to the power of the sword at the time of their calamity, at the time of the punishment of the end,

I will turn you into an everlasting wasteland, and your cities will never be inhabited. Then you'll learn that I am the LORD!

Thus says the Lord God, “Because the enemy has spoken against you, ‘Aha!’ and, ‘The everlasting heights have become our possession,’

They will live in the land that I gave to my servant Jacob and on which your ancestors lived. They will live in that land, along with their children and grandchildren, forever. David my servant will be their everlasting leader.

Moreover I will make a covenant of peace with them; it shall be an everlasting covenant with them: and I will place them, and multiply them, and will set my sanctuary in the midst of them for evermore.