He that hath ears to hear, let him hear - As if our Lord had said, These things are so clear and manifest that a man has only to hear them to be convinced and fully satisfied of their truth. But neither the Jews of that time nor of the succeeding times to the present day, have heard or considered, these things. When spoken to on these subjects, their common custom is to stop their ears, spit out, and blaspheme; this shows not only a bad, but a ruined cause. They are deeply and willfully blind. They will not come unto the light, lest their deeds should become manifest, that they are not wrought in God. They have ears but they will not hear.

Matthew 13:9,43 Who has ears to hear, let him hear...

Mark 4:9,23 And he said to them, He that has ears to hear, let him hear...

Mark 7:16 If any man have ears to hear, let him hear.

Luke 8:8 And other fell on good ground, and sprang up, and bore fruit an hundred times. And when he had said these things, he cried...

Revelation 2:7,11,17,29 He that has an ear, let him hear what the Spirit said to the churches; To him that overcomes will I give to eat of the tree of life...

Revelation 3:6,13,22 He that has an ear, let him hear what the Spirit said to the churches...

John's Doubts of Jesus, and Jesus' Praise of John
'Now when John had heard in the prison the works of Christ, he sent two of his disciples, 3. And said unto Him, Art Thou He that should come, or do we look for another? 4. Jesus answered and said unto them, Go and shew John again those things which ye do hear and see: 5. The blind receive their sight, and the lame walk, the lepers are cleansed, and the deaf hear, the dead are raised up, and the poor have the gospel preached to them. 6. And blessed is he, whosoever shall not be offended in Me. 7. …
Alexander Maclaren—Expositions of Holy Scripture

Again on the Words of the Gospel, Matt. xi. 28, "Come unto Me, all Ye that Labour and are Heavy Laden, and I Will Give You
1. It seems strange to some, Brethren, when they hear the Lord say, "Come unto Me, all ye that labour and are heavy laden, and I will refresh you. Take my yoke upon you and learn of Me, for I am meek and lowly in heart, and ye shall find rest unto your souls. For My yoke is easy and My burden is light." [2323] And they consider that they who have fearlessly bowed their necks to this yoke, and have with much submission taken this burden upon their shoulders, are tossed about and exercised by so great …
Saint Augustine—sermons on selected lessons of the new testament

The Sinner's Friend
"Savior of sinners they proclaim, Sinners of whom the chief I am." What the invidious Jews said in bitter spleen, has been turned by the Holy Spirit to the most gracious account. Where they poured out vials of hate, odours of sacred incense arise. Troubled consciences have found a sweet balm in the very sound. Jesus, "the friend of publicans and sinners," has proved himself friendly to them, and they have become friends with him; so completely has he justified the very name which his enemies gave …
Charles Haddon Spurgeon—Spurgeon's Sermons Volume 10: 1864