Commentaries:
Because action follows thought, Jesus is against hatred, malice, and envy, all of which are included within "evil thoughts." Each is a form of the spirit of murder. His concern is not only with how we act but also why we actnot only in what we actually do but also in what we desire to do in our heart of hearts. To eat with unwashed hands does not defile the heart, but gluttony does. To eat with publicans and sinners does not defile, but self-righteousness does. What a person does against us does not defile us, but hatred, anger, and malice toward him does.
John W. Ritenbaugh
The Sixth Commandment (Part One)
The tongue utters only what is already in the heart (Matthew 12:34). Acts of sin besides what the tongue commits proceed from the same evil heart (Matthew 15:17-20). Matthew 7:16-18 confirms the impossibility of changing an evil heart, as it can never produce good fruit. God must completely replace it with a wholly different nature for it to produce good fruit! Before being changed, it can produce only evil fruit.
John W. Ritenbaugh
The Offerings of Leviticus (Part Seven): The Sin and Trespass Offerings
Other commentary entries containing this verse:
Matthew 5:8
Matthew 7:16-18
Matthew 12:33-37
Matthew 12:34
Matthew 15:17-20
Mark 7:14-23
Mark 7:14-23
Hebrews 11:5-6
Library resources that contain this verse: