Mark 12:28
28 Then one of the Scribes, who had heard them disputing and well knew that Jesus had given them an answer to the point, and a forcible one, came forward and asked Him, "Which is the chief of all the Commandments?"
28 Then one of the Scribes, who had heard them disputing and well knew that Jesus had given them an answer to the point, and a forcible one, came forward and asked Him, "Which is the chief of all the Commandments?"