Knowledge of God Matters

“We are cruel to ourselves when we try to live in this world without knowing the God whose world it is and who runs it. The world becomes a strange, mad, painful place for those who do not know about God. Disregard the study of God, and you sentence yourself to stumble and blunder through life, blindfold, as it were, with no sense of direction and no understanding of what surrounds you. This way you can waste your life and lose your soul.” – J.I. Packer

Everyone is a theologian because we all think about God. We know God personally (since God is a person) and propositionally through revealed truth in Scripture, Creation, and Jesus Christ Himself (Heb. 1:1-4).
Two Excellent Books:
Knowing God by J.I. Packer