A selection of verses showing that Jesus is often called the son of David.
Matthew starts his gospel by telling us that Jesus is David's son:
1 The book of the genealogy of Jesus Christ, the son of David, the son of Abraham.
Many people address Jesus as son of David:
27 As Jesus passed by from there, two blind men followed him, calling out and saying, “Have mercy on us, son of David!”
23 All the multitudes were amazed, and said, “Can this be the son of David?”
22 Behold, a Canaanite woman came out from those borders, and cried, saying, “Have mercy on me, Lord, you son of David! My daughter is severely possessed by a demon!”
30 Behold, two blind men sitting by the road, when they heard that Jesus was passing by, cried out, “Lord, have mercy on us, you son of David!” 31 The multitude rebuked them, telling them that they should be quiet, but they cried out even more, “Lord, have mercy on us, you son of David!”
9 The multitudes who went in front of him, and those who followed, kept shouting, “Hosanna to the son of David! Blessed is he who comes in the name of the Lord! Hosanna in the highest!”
41 Now while the Pharisees were gathered together, Jesus asked them a question, 42 saying, “What do you think of the Christ? Whose son is he?”
They said to him, “Of David.”
Look at the theme God's promises to David to see the significance of Jesus being called son of David.