Luke 11:40

“You foolish ones, did not he who made the outside make the inside also?”

Then He gives a gentle rebuke. Such an attitude is foolish for God created all things. To be concerned about the outside and not the inside is to neglect half of creation, and God is equally concerned about both. Indeed He is more concerned about the inward than the outward. For if the inward is right, the outward will soon conform. (The purpose of the laws of cleanliness was in order to encourage an attitude of clean living from the heart).

“You foolish ones.” The idea of that those who do not respond to God and His word are ‘fools' is mentioned in the book of Proverbs over seventy five times, and in the Psalms over a dozen times, and the behaviour of the fool is well illustrated there, and especially described in Psalms 14. It was a word that among the Jews pointed to one who took little regard of God and his requirements. To these men it should have been a wake-up call. They were behaving as if there were no God.