Charles Ellicott Commentary Matthew 11:15

"He that hath ears to hear, let him hear." — Matthew 11:15 (ASV)

He that hath ears to hear — The formula, which we encounter here for the first time, is one that our Lord seems to have used habitually after any teaching, in parable or otherwise (Matthew 13:9; Mark 4:9), that required more than ordinary powers of thought to comprehend. To take in the new aspect of the coming of Elijah required an insight like that which people needed to take in the meaning of the parable of the Sower without an interpreter.