Charles Ellicott Commentary Mark 7:13

"making void the word of God by your tradition, which ye have delivered: and many such like things ye do." — Mark 7:13 (ASV)

Making the word of God of none effect.—Again the Greek word is somewhat more technical, making null and void, cancelling, as in Galatians 3:17.

Through your tradition.—Here the structure of the sentence points to the “tradition” as being the instrument with which the Law was made null and void. In Matthew 15:6 the meaning is slightly different (see Note there).

Many such like things.—Assuming the words washing of cups and pots, in Mark 7:8, to be genuine, there is an emphatic scorn expressed in this iteration of the same formula.