Luke 1:69
He has provided a horn of salvation [i.e., His saving strength] for us from a descendant of His servant King David [i.e., Jesus, born of Mary]
Acts 2:30
Since he was a prophet and knew that God had pledged His word that one of his [i.e., David's] descendants would sit on his throne [as king];
Acts 13:23
[Now] it was this David's descendant Jesus who was sent to Israel as their Savior, just as God had promised.
Acts 13:34
[Now] in regard to God raising Him up from the dead, never to decay, He said this about it [Isa. 55:3], "I will give you the sacred and certain blessings promised to David."