It is said that a picture is worth a thousand words. Words are what characterized the experiences of Jesus and His disciples for some time. Matthew records some of them - words, words, words. Words of warning about corrupt and misguided religious officials. Words of inquiry about the true identity of Jesus.
Pictures sometimes help drive a point home in a way that words alone never can do.
Which is why Jesus' ministry was not merely talk. He used visual demonstrations to back up what he was saying, and did that time and again. So He healed the sick. And fed 5000. And walked on water.