Mark 7:15 (BSB)

Nothing that enters a man from the outside can defile him; but the things that come out of a man, these are what defile him.”

From Mark 7. Also in the ESV.

Commentary on Mark 7:15

• Matthew Henry (Presbyterian), Matthew Henry's Complete Commentary on Mark 7:1-23: One great design of Christ's coming, was, to set aside the ceremonial law which God made, and to put an end to it; to make way for which he begins with the ceremonial law which men had made, and added to the law of God's making, and discharges his disciples from the obligation of that; which here he doth fully, upon occasion of the offence...
• John Gill (Reformed Baptist), Exposition of the Old and New Testaments on Mark 7:15: There is nothing from without a man,.... As any sort of food and drink, whether it be received, with, or without washing of the hands: that entering into him can defile him; in a moral sense, or render him loathsome and unacceptable in the sight of God: but the things which come out of him; the Arabic: version reads, "out of the mouth of man"...