(39) Master, thou hast well said.—The words came, it is obvious, from the better section of the Pharisees, who welcomed this new defence of the doctrine on which their faith rested.

20:39-47 The scribes commended the reply Christ made to the Sadducees about the resurrection, but they were silenced by a question concerning the Messiah. Christ, as God, was David's Lord; but Christ, as man, was David's son. The scribes would receive the severest judgement for defrauding the poor widows, and for their abuse of religion, particularly of prayer, which they used as a pretence for carrying on worldly and wicked plans. Dissembled piety is double sin. Then let us beg of God to keep us from pride, ambition, covetousness, and every evil thing; and to teach us to seek that honour which comes from him alone.See the notes at Mark 12:32. 39. scribes … well said—enjoying His victory over the Sadducees.

they durst not—neither party, both for the time utterly foiled.

Ver. 39,40 The scribes were the Jewish doctors of the Pharisees faction, and enemies to the Sadducees; they applaud our Saviour’s answer: thus as the Herodians before, (in the case of the tribute), so the Sadducees here, are put to silence. He will now put the scribes and Pharisees to silence.

Then certain of the Scribes, answering said,.... Who believed the doctrine of the resurrection, which the Sadducees denied, and so were pleased with our Lord's reasoning on this subject:

master, thou hast well said; thou hast spoken in a beautiful manner, reasoned finely upon this head, and set this matter in a fair and clear light; See Gill on Mark 12:28

Then certain of the scribes answering said, Master, thou hast well said.