I’ve taken note that a well known Bible teacher states that the Earth is a world without end, and uses Eph. 3:21 to back that up. But looking to Isaiah 65:17 says the Lord will create new Heavens and a new Earth; and that the former will not be remembered. This teacher says the Earth will be “restored”, but using the Strong’s concordance, the word translated new in Isaiah 65:17 is #2319, (kaw-dawsh) which means “new”-fresh, new thing, not #2318, (kaw-dash), which means renew. Am I missing something?
Isaiah 65:17 was written in the context of the Millennium. Jesus called that time the restoration of all things (Matt. 19:28), and God said that when He returns to the Temple at the beginning of the Millennium, He’ll dwell there forever. (Ezek. 43:7) As you probably noticed, #2319 is a derivative of #2318 which as you noted means to renew or repair.