Woe to you lawyers! For you have taken away the key of knowledge; you did not enter yourselves, and you hindered those who were entering.” (Luke 11:52, NRSV)
I’ve had teachers like that. They want to show how smart they are and they end up befuddling their students. Starting out to be teachers, they become confusers. The opposite of the original intention. Either their intentions have changed—from being teachers to being admired for their great learning—or they are just not good at what they intend to do.
As Joel Green says (The Gospel of Luke, The New International Commentary on the New Testament, p. 475):
Jesus insists, the portfolio of the expert in the law is to pull back the veil on the meaning and relevance of the law of God, but their efforts have had the opposite effect—both for themselves and for those for whom they were to serve as teachers.
Jesus was rather scathing in his denunciation of these lawyers. I hope to hear a better message from him when my teaching comes up for discussion in the kingdom.