For evil thoughts come from within, out of people’s hearts, such as sexual immorality, thefts, murders, adulteries,
“out of people’s hearts.” The “heart” is the source of life. Mark 7:20-23 is similar to what Jesus taught in Matthew 15:18-19 (see commentary on Matthew 15:18).
[For more on the heart, see commentary on Prov. 4:23.]