(16) If any man have ears to hear.--It was with this formula that our Lord had closed some at least of His parables (Mark 4:9, Matthew 13:10). And it was probably this that led to the form which the inquiry of the disciples took when they came to ask their Master "concerning the parable." The whole verse is, however, omitted in many of the best MSS., and may have been originally a marginal note written by some early transcriber to call attention to the truth stated in the text.
7:14-23 Our wicked thoughts and affections, words and actions, defile us, and these only. As a corrupt fountain sends forth corrupt streams, so does a corrupt heart send forth corrupt reasonings, corrupt appetites and passions, and all the wicked words and actions that come from them. A spiritual understanding of the law of God, and a sense of the evil of sin, will cause a man to seek for the grace of the Holy Spirit, to keep down the evil thoughts and affections that work within.