"In the beginning, O Lord, You founded the earth, and the heavens are the work of Your hands. They will perish, but You remain" (Ps 101:26-27).
If You, O Lord, had not known all things from the beginning, says the psalmist, and if the foundation of the heavens had not been the work of Your hands, then neither their change nor their transformation into something else would be possible.
If they were uncreated, they would remain unfinished. But now, since You are their Creator, You can change them if You will. By their nature they are corruptible and subject to destruction. They did not exist before You created them by Your will and power.
There is only One who abides eternally and cannot fail to be: You, the sole Creator of all.