'Royal' in the Bible

And upon a set day Herod, arrayed in royal apparel, sat upon his throne, and made an oration unto them.

If ye fulfil the royal law according to the scripture, Thou shalt love thy neighbour as thyself, ye do well:

But ye are a chosen generation, a royal priesthood, an holy nation, a peculiar people; that ye should shew forth the praises of him who hath called you out of darkness into his marvellous light: