Mark 7:23 lists the evil thoughts and actions from within that defile — directly enumerating what Mark 7:20 summarizes.

Matthew 12:34-37 directly parallels: out of the heart the mouth speaks, and words reveal inner evil—just as what comes out defiles.

James 1:14 locates temptation in internal desire, reinforcing Jesus' assertion that defilement comes from within a person.

James 1:15 traces sin's birth from desire to death, illustrating the progression of internal defilement that Jesus speaks of.

James 3:6 calls the tongue a fire that stains the whole body, directly connecting inner evil to outward defilement.

James 4:1 traces quarrels to internal passions at war, showing how inner conflict produces external strife—consistent with Mark 7:20.