“Let God be exalted, The Rock of my salvation!”
~ 2 Samuel 22:47 (NKJV)
The doctrine of God’s immutability is of the highest significance for religion. The contrast between being and becoming marks the difference between the Creator and the creature. Every creature is continually becoming. It is changeable, constantly striving, seeks rest and satisfaction, and finds this rest in God, in Him alone, for only He is pure being and no becoming. Hence, in Scripture God is often called the Rock.
~ Herman Bavinck (1854-1921)