How does Christ know us intimately?

In John 1:48, Nathanael is astonished that Jesus knows him, revealing Christ's omniscience. This serves as a reminder that Christ sees us fully, understanding our hearts and the depths of our beings. David illustrates this in Psalm 139, where he speaks of God's pervasive presence and knowledge of us both in action and thought. This intimate knowledge assures believers that Christ is personally invested in their lives, leading them, teaching them, and declaring them His own through His grace.