This is a subsidiary post of Vocabulary of Kingdom.
Something is “royal” if it pertains to the king.
James 2:8 – “If, however, you are fulfilling the royal law according to the Scripture, “YOU SHALL LOVE YOUR NEIGHBOR AS YOURSELF,” you are doing well. – An NASB marginal note on “royal law” reads “Or law of our King.” In this regard, consider also the reference to Jesus in James 4:12, an allusion to Isaiah 33:22 which also mentions that this “lawgiver and judge” is “king.”
1 Peter 2:9 – “But you are…a royal PRIESTHOOD…”
2 Chr 7:17, 18 – “As for you, if you walk before Me as your father David walked, even to do according to all that I have commanded you, and will keep My statutes and My ordinances, then I will establish your royal throne as I covenanted with your father David, saying, ‘You shall not lack a man to be ruler in Israel.'” – This is the Lord speaking to Solomon.
Isaiah 22:15-25 – “Thus says the Lord GOD of hosts, ‘Come, go to this steward, to Shebna, who is in charge of the royal household…'” – The NASB indicates that this word is not actually in the text, but is rather inferred by the translators. Nonetheless, the verse demonstrates that “royal” means “that which pertains to the king” because “king’s” would have served just as well as “royal” in this sentence.