We do not make friends with God; God makes friends with us, bringing us to know Him by making His love known to us. Paul expresses this thought of the priority of grace in our knowledge of God when he writes to the Galatians, “Now that you know God-or rather are known by God” (Gal4:9). What comes to the surface in this qualifying clause is the apostle’s sense that grace came first, and remains fundamental, in his readers’ salvation. Their knowing God was the consequence of God’s taking knowledge of them. They know Him by faith because He first singled them out by grace.
……All my knowledge of Him depends on His sustained initiative in knowing me. I know Him because He first knew me, and continues to know me.
–J.I. Packer, Knowing God, page 41