Ephesians 5:22 tells wives to submit to their husbands as to whom?

Answer: The Lord

Ephesians 5:22 says, "Wives, submit to your husbands as to the Lord," right after v.21 calls all to submit to one another out of reverence for Christ.

“Submit to one another out of reverence for Christ. Wives, submit to your husbands as to the Lord.”— Ephesians 5:21-22 (BSB)