Adam Clarke on Deuteronomy 6:20

And when thy son asketh thee, etc. - "Here," as Mr. Ainsworth justly remarks, "followeth a brief catechism, containing the grounds of religion."

What mean the testimonies, etc. - The Hebrew language has no word to express to mean or signify, and therefore uses simply the substantive verb what is, i. e., what mean or signify, etc. The seven thin ears Are, i. e., signify, seven years of famine. This form of speech frequently occurs.