'Royal' in the Bible

and formed us into a kingdom [as His subjects], priests to His God and Father—to Him be the glory and the power and the majesty and the dominion forever and ever. Amen.

“You have made them to be a kingdom [of royal subjects] and priests to our God; and they will reign on the earth.”

Then another sign appeared in the sky: a huge red dragon with seven heads, ten horns, and seven royal crowns on its heads.

I saw a beast coming out of the sea. It had ten horns, seven heads, and ten royal crowns on its horns. On its heads were blasphemous names.

The ten horns that you saw are ten kings who have not yet received a kingdom, but [together] they receive authority as kings for a single hour [for a common purpose] along with the beast.

For God has put into their minds to carry out his purpose by making a decision to give their royal power to the beast until the words of God are fulfilled.

His eyes are like a flame of fire, and on his head are many royal crowns. He has a name written on him that nobody knows except himself.