One of the most common sayings of the Lord Jesus is the saying, ‘He that has ears to hear, let him hear!’ It’s a awful thing to be DEAF when God is speaking!
John Flavel (vol. 2, p.302) – ‘…no judgment of God, on this side of hell, is greater than a hard heart and a stupid conscience under the Word… O therefore… attend upon every opportunity that God affords you; for you know not in which of them the Lord may work upon your hearts.’