God’s Perfection Proves Immutability

Another good argument may be found in the fact of God’s perfection. I believe God to be a perfect being. Now, if he is a perfect being, he cannot change. Do you not see this? Suppose I am perfect to-day. If it were possible for me to change, should I be perfect tomorrow after the alteration? If I changed, I must either change from a good state to a better — and then if I could get better, I could not be perfect now-or else from a better state to a worse and if I were worse, I should not be perfect then. If I am perfect, I cannot be altered without being imperfect. If I am perfect to-day, I must keep the same to-morrow if I am to be perfect then. So, if God is perfect, he must be the same- for change would imply imperfection now, or imperfection then.

Charles H. Spurgeon-The Immutability of God- A Sermon January 7, 1855