Skeptics argue that some verses say the earth was established forever (Psa.78:69; Eccl. 1:4; 3:14), contradicting those that say the earth will someday perish (Psa. 102:25,26; Matt. 24:35; Heb. 1:10,11; 2 Pet. 3:10).
God has established that the earth will exist forever, though it will be completely remade. At the end of time He is going to make a new heavens and a new earth (see Isa. 65:17; 2 Pet. 3:13), and will make all things new to remove the curse of sin (see Rev. 21:1).
Psalm 78:69 And He built His sanctuary like the heights, Like the earth which He has established forever.