'Have Mercy' in the Bible

Have mercy on us, thou Son of David. And the blind men came to Him, having come into the house: and Jesus says to them, Do you believe that I am able to do this? They say to Him, Yea, Lord.

And behold, a Canaanitish woman having come out from those coasts, cried unto Him saying, Have mercy on me, Lord, thou son of David; my daughter is terribly demonized.

and saying, Lord, have mercy on my son, because he is a lunatic and suffers terribly: for frequently he falls into the fire, and frequently into the water.

did it not behoove thee also to have mercy on thy fellow-servant, as I had mercy on thee?

And behold, two blind men sitting by the wayside, hearing that Jesus is passing by, cried out, saying; Have mercy on us, O son of David.

And the multitude rebuked them, that they should keep silent. And they cried out the more, saying; Have mercy on us, O Lord, son of David.