Jesus now asks a question of the Pharisees. Johann Bengel suggests that this was not merely the Pharisees gathering together as a group, but gathering "solemnly",Bengel, J. A., Bengel's Gnomon of the New Testament: Matthew 22, accessed 15 March 2021 having assembled in verse 34 as a result of them hearing that the Sadducees had been "put to silence".: KJV
