The things of this world will disappear. The stuff will corrode, the people will die, the earth itself is only a temporary. However, God is Creator, he is above all things including his first creations, the heaven and the earth.
God will take care of us and he desires to have us with him in eternity. The materials of this world will disappear, but he promises that God gave us through His Word will never disappear -- they will stand forever.
I have faith in you and I trust in your Word. Thank you for loving me so and for the eternal promises you give us in your Word.