Conversations.

From Spurgeon:

Do you often hear the salutation addressed to you by your brother Christian, "Friend, how doth thy soul prosper?" When we step into each other's houses, do we begin to talk concerning the cause and truth of God? Do you think that God would now stoop from heaven to listen to the conversation of his church, as once he did, when it was said, "The Lord hearkened and heard, and a book of remembrance was written for them that feared the Lord and that thought upon his name?" I solemnly declare, as the result of thorough, and, I trust, impartial observation, that the conversation of Christians, while it can not be condemned on the score of morality, must almost invariably be condemned on the score of Christianity. We talk too little about our Lord and Master.

From his sermon from Habakkuk 3 on Spiritual Revival: The Want of the Church