Charles Spurgeon Commentary Mark 10:47

"And when he heard that it was Jesus the Nazarene, he began to cry out, and say, Jesus, thou son of David, have mercy on me." — Mark 10:47 (ASV)

He began to cry out, and say, Jesus, you son of David, have mercy on me.

He had advanced much further than the mass of the people. To him it was not "Jesus of Nazareth," but it was "Jesus, you Son of David."