“If God is not unchanging, then the whole basis of our faith begins to fall apart, and our understanding of the universe begins to unravel. This is because our faith and hope and knowledge all ultimately depend on a person who is infinitely worthy of trust - because he is absolutely and eternally unchanging in his being, perfections, purposes, and promises.”
Source : Wayne A. Grudem (2009). “Systematic Theology: An Introduction to Biblical Doctrine”, p.153, Zondervan
