John Gill - Exposition
John Gill
Master, which is the great commandment in the law?] He calls him "master, Rabbi, or doctor", as the Sadducees had in Matthew 22:24 either because he was usually so called by his disciples, and by the generality of the people; or merely in complaisance to engage his attention to him, and his question: and might hereby suggest, that should he return a proper and satisfactory answer to it he should...