Mark 7:14

And when he had called all the people unto him, he said unto them, Hearken unto me every one of you, and understand:

Cross-references

Mark 4:9 ends with 'whoever has ears to hear' — a parallel emphasis on attentive hearing to Jesus' teaching.

Isaiah 6:9 describes people who hear but do not understand — contrasting with Jesus' call for them to truly understand.

Matthew 15:10 is the parallel account of the same event, with Jesus saying 'Listen and understand' almost verbatim.

Matthew 13:9 uses the 'ears to hear' saying, complementing Jesus' call to understand in Mark 7:14.