Question: How can one who is single act as a king or queen as that title implies marriage of a man and woman?
Answer: The ministry of a king or queen as defined in the scriptures depends upon the law a person keeps. In Isaiah’s theology, that is the law of the Davidic Covenant. In other words, the law you keep is what determines whether you are a king or queen as the scriptures define them.
If a single person keeps the law of the Davidic Covenant, or if one person keeps it but not their spouse, they lack nothing. Anyone who “seeks first the kingdom of God and his righteousness” and serves as a king or queen therein may be assured that “all these things shall be added unto you” (Matthew 6:33) whether in the present or in the Lord’s own due time.