Nothing is more unsettling than talkativeness and more pernicious than an unbridled tongue, disruptive as it is of the soul’s proper state. For the soul’s chatter destroys what we build each day and scatters what we have laboriously gathered together. What is more disastrous than this ‘uncontrollable evil’ (James 3:8)? The tongue has to be restrained, checked by force and muzzled, so to speak, and made to serve only what is needful. Who can describe all the damage that the tongue does to the soul?
Where humility is combined with the remembrance of God that is established through watchfulness and attention, and also with recurrent prayer inflexible in its resistance to the enemy, there is the place of God, the heaven of the heart in which because of God’s presence no demonic army dares to make a stand.
~St Philotheos of Sinai
Prayerful Life 