A.T. Robertson Commentary Luke 20:39

"And certain of the scribes answering said, Teacher, thou hast well said." — Luke 20:39 (ASV)

Certain of the scribes (τινες των γραμματεων). Pharisees who greatly enjoyed this use by Jesus of a portion of the Pentateuch against the position of the Sadducees. So they praise the reply of Jesus, hostile though they are to him.