"No longer shall they teach one another, or say to each other, 'Know the LORD', for they shall all know me, from the least of them to the greatest, says the LORD; for I will forgive their iniquity and remember their sin no more. (Jeremiah 31:34)
As we open ourselves to the new heart that God promises, we find that God has created our new hearts to know God… Jeremiah reveals that God not only offers us a new heart, but that heart has a capacity for knowing the God who created and redeemed it. The new heart can know God's compassionate forgiveness no matter what its formal learning, its social status, its previous record of brokenness.
[We are called] to examine our use of this new heart that God has given us. We begin by asking ourselves if we have acquired information about God only through Bible study, theological books, attentiveness to sermons. If head knowledge is the only knowledge of God we have, we may need a new heart -- one that can teach us in relationship about the God who knows our name, who knows the number of hairs on our head.
-- Elizabeth Nordquist in The Upper Room Disciplines