To be a cultural Christian means to pursue the God we want instead of the God who is. It is the tendency to be shallow in our understanding of God, wanting Him to be more of a gentle grandfather type who spoils us and lets us have our own way. It is sensing a need for God, but on our own terms. It is wanting the God we have underlined in our Bibles without wanting the rest of Him, too. Cultural Christianity requires God to grant us personal peace and affluence to prove He loves us.
Actually, God loves us so much that He will cleanse the cultural Christianity from our lives, like the silversmith purifies silver by burning off the dross.
Until every church disciples every man...
(adapted from 25th Anniv. Ed. of The Man in the Mirror)