"The wisdom that comes from heaven is first of all pure; then peace-loving, considerate, submissive, full of mercy and good fruit, impartial and sincere." (James 3:17)
Not many should presume to be teachers; teachers will be judged more strictly. We all stumble in many ways. If anyone is never at fault in what they say, they are perfect. The tongue is a small part of the body but it makes great boasts. Consider how a great forest is set on fire by a small spark. The tongue also is a fire, a world of evil among the parts of the body. It corrupts the whole body, sets the whole course of one's life on fire, and is itself set on fire by hell. All kinds of animals have been tamed, but no human being can tame the tongue. It is a restless evil, full of deadly poison. With the tongue we praise our Lord and Father, and with it we curse human beings made in God's likeness. Out of the same mouth come praise and cursing. This should not be.
The Catechism draws from James 3 its treatment of sins of speech: lying, detraction, calumny, rash judgment. The tongue is the instrument of great good and great evil, and the discipline of speech is a spiritual practice as serious as fasting and prayer (CCC 2477).
Who is wise and understanding? Let them show it by their good life, by deeds done in the humility that comes from wisdom. But if they harbour bitter envy and selfish ambition, that is earthly wisdom, unspiritual, demonic. For where there is envy and selfish ambition, there is disorder and every evil practice. The wisdom that comes from heaven is first of all pure; then peace-loving, considerate, submissive, full of mercy and good fruit, impartial and sincere. Peacemakers who sow in peace reap a harvest of righteousness. The contrast between the two wisdoms is the contrast between every kind of human community that organises itself around competition and every community that organises itself around the peace that comes from above.
Brothers and sisters, with the same tongue we praise God and curse people made in his likeness. This should not be. Notice your tongue today. Not in the formal moments of prayer and teaching but in the informal moments: what do you say about absent people? What do you say under your breath? The tongue that has been tamed for worship and untamed for gossip is the tongue James describes. Ask God to bring them into alignment.
Lord God, tame our tongues with your wisdom from above. Give us speech that is pure and peace-loving and full of mercy. Free us from the bitter envy and selfish ambition that produce disorder. Let our mouths praise you and bless those made in your image. Through Christ our Lord. Amen.