Matthew 15:22

15:22 A Canaanite woman from that area came and cried out, “Have mercy on me, Lord, Son of David! My daughter is horribly demon-possessed!”

Matthew 20:30-31

20:30 Two blind men were sitting by the road. When they heard that Jesus was passing by, they shouted, “Have mercy on us, Lord, Son of David!” 20:31 The crowd scolded them to get them to be quiet. But they shouted even more loudly, “Lord, have mercy on us, Son of David!”