Acts 2:30
Being a Prophet, however, and knowing that God had solemnly sworn to him to seat a descendant of his upon his throne,
Luke 1:32
He will be great and He will be called 'Son of the Most High.' And the Lord God will give Him the throne of His forefather David;
Luke 1:69-70
And has raised up a mighty Deliverer for us In the house of David His servant--
Hebrews 6:18
He added an oath, in order that, through two unchangeable things, in which it is impossible for Him to prove false, we may possess mighty encouragement--we who, for safety, have hastened to lay hold of the hope set before us.