Treasure

A good man out of the good treasure of his heart brings forth good things, and an evil man out of the evil treasure brings forth evil things. But I say to you that for every idle word men may speak, they will give account of it in the day of judgment. (Matthew 12:35-36)

 
Those whose hearts are filled with the Word of God convey the richness and greatness of the Lord to all who hear them. They delight in sharing the treasure found in the Word of God.

Those who have impure hearts exude the smell of hell, of what is profane, influencing others to blaspheme the Name of God, without any fear. On the day of judgment, each one will give account even of the frivolous words they uttered.