John Calvin on Mark 12:32

Mark 12:32. Master, thou hast spoken well, and with truth. Mark alone mentions that the scribe was softened down; and it is worthy of notice that, though he had attacked Christ maliciously, and with the intention of taking him by surprise, not only does he silently yield to the latter, but openly and candidly assents to what Christ had said. Thus we see that he did not belong to the class of those enemies whose obstinacy is incurable; for, though they have been a hundred times convinced, yet they do not cease to oppose the truth in some manner. From this reply it may also be concluded, that Christ did not precisely include under these two words the rule of life, but embraced the opportunity which presented itself for reproving the false and hypocritical holiness of the scribes, who, giving their whole attention to outward ceremonies, almost entirely disregarded the spiritual worship of God, and cared little about brotherly kindness. Now though the scribe was infected by such corruptions, yet, as sometimes happens, he had obtained from the Law the seed of right knowledge, which lay choked in his heart, and on that account he easily allows himself to be withdrawn from the wicked custom.