Hearing not enough... understanding is necessary.

Jesus teaches that both hearing and understanding is necessary for discipleship.

Matthew 13:23 23 But as for what was sown on good soil, this is the one who hears the word and understands it, who indeed bears fruit and yields, in one case a hundredfold, in another sixty, and in another thirty."

Do we ignore Jesus' teaching that not only do we need to hear, but we need to understand?

Note:  Interesting that a yield of sixty or thirty are both considered "good".