"When a garment gets old you lay it aside. 
When you change an old coat, what do you have?- A new one.
The earth and the heavens shall wax old like a garment, and they shall be changed; and then, of course, when they are old and are changed, the new heavens and earth will appear.
And I saw a new heaven and a new earth: for the first heaven and the first earth were passed away...But thou art the same, and thy years shall not fail. Revelation 21:1/Hebrews 1:12
He does not get old. What a world of comfort there is in that! We change; He is the same."
E.J. Waggoner