I know that everything God does endures forever; nothing can be added to it or taken from it. God does it so that they should fear Him.
We have seen what changes there are in the world, and must not expect to find the world more sure to us than it has been to others. Now here Solomon shows the hand of God in all those changes; it is he that has made every creature to be that to us which it is, and therefore we must have our eye always upon him. I.
Commenting on Ecclesiastes 3:11-15
I know that whatsoever God doeth, it shall be for ever,.... Which some, as Jarchi, understand of the works of creation, the heavens and the earth, which are however of long standing and duration; and though they shall be dissolved and perish, as to their form and quality, yet not as to the substance of them: the earth particularly is said to abide for ever...
(Sa1 3:12; Sa2 23:5; Psa 89:34; Mat 24:35; Jam 1:17). for ever--as opposed to man's perishing labors (Ecc 2:15-18). any thing taken from it--opposed to man's "crooked and wanting" works (Ecc 1:15; Ecc 7:13). The event of man's labors depends wholly on God's immutable purpose.