So he replied, “This means, then, that every teacher of the Law who becomes a disciple in the Kingdom of heaven is like a homeowner who takes new and old things out of his storage room.”
A good person brings good out of the treasure of good things in his heart; a bad person brings bad out of his treasure of bad things. For the mouth speaks what the heart is full of.
Do not use harmful words, but only helpful words, the kind that build up and provide what is needed, so that what you say will do good to those who hear you.
Christ's message in all its richness must live in your hearts. Teach and instruct one another with all wisdom. Sing psalms, hymns, and sacred songs; sing to God with thanksgiving in your hearts.