Luke 6:45

A good man out of the good treasure of his heart
This, because of its suitableness and agreement with what goes before, is placed by Luke here; though, according to Matthew, it was spoken at another time and place, unless it should be a repetition there; (See Gill on Matthew 12:35)

for of the abundance of the heart his mouth speaketh.
The Vulgate Latin, Arabic, Ethiopic, Syriac, and Persic versions, leave out the word "his"; and the two latter read "lips", instead of "mouth"; (See Gill on Matthew 12:34).