How Do We Know?

The God of Scripture can only be known by those to whom He makes Himself known.

Nor is God known by the intellect. “God is Spirit” (John 4:24), and therefore can only be known spiritually. But fallen man is not spiritual, he is carnal. He is dead to all that is spiritual. Unless he is born again supernaturally brought from death unto life, miraculously translated out of darkness into light, he cannot even see the things of God (John 3:3), still less apprehend them (1 Cor. 2:14). The Holy Spirit has to shine in our hearts (not intellects) in order to give us “the knowledge of the glory of God in the face of Jesus Christ” (2 Cor. 4:6). And even that spiritual knowledge is but fragmentary. The regenerated soul has to grow in grace and in the knowledge of the Lord Jesus (2 Pet. 3.18).

The principal prayer and aim of Christians should be that we “walk worthy of the Lord unto all pleasing, being fruitful in every good work and increasing in the knowledge of God” (Col. 1:10).

A.W. Pink
The Attributes of God