Many people are looking for an ear that will listen. They do not find it among Christians, because these Christians are talking where they should be listening. But he who can no longer listen to his brother will soon be no longer listening to God either; he will be doing nothing but prattle in the presence of God too. This is the beginning of the death of the spiritual life, and in the end there is nothing left but spiritual chatter and clerical condescension arrayed in pious words. One who cannot listen long and patiently will presently be talking beside the point and be never really speaking to others, albeit he be not conscious of it. Anyone who thinks that his time is too valuable to spend keeping quiet will eventually have no time for God and his brother, but only for himself and for his own follies.

-Dietrich Bonhoeffer, Life Together 1954. Pages 97-98.

Quoted here by someone who often forgets to listen.