Q. 2. Whence doth God's immutability flow?
A. The immutability of God flows from the perfection of his nature, to which nothing can be added, and from which nothing can be taken away. If any thing could be added to make him better than he is; or if any thing could be taken away, to make him less good than he is, then he were not the chiefest good, and, consequently, not God.