“For the husband is the head of the wife, even as Christ is the head of the church.” – Ephesians 5:23

Here you have a union, not only of life, but also of love. It is worthy of notice that the two words, “live” and “love”, should be so like each other. In spiritual things, the two things are not only similar, but they are also exactly alike. Love is the life; and life is always first sent, and chiefly sent in the form of love.

With the true husband, his wife is himself. The Scripture saith, “He that loveth his wife loveth himself;” and I believe that Christ considers that, when He loves His church, He loves Himself. His care for us is now His care for Himself. Since He has taken us to be in eternal wedded union with Himself, He regards us as Himself, and He cares for us as He cares for Himself: “For we are members of His body, of His flesh, and of His bones.” No sane man will injure his own flesh. “No man ever yet hated his own flesh; but nourisheth and cherisheth it, even as the Lord the church.” So Christ takes care of His people, because He regards them as being bound to Himself by those bonds which make them to be as Himself. Hence, we are kept as the apple of His eye.

However close may be the union of husband and wife, the union between the believer and Christ is closer still. Oh, to realize more and more of it each day!

“O Jesus! Make Thyself to me
A living, bright reality;
More present to faith’s vision keen
More than any outward object seen.
More dear, more intimately nigh,
Than e’en the sweetest earthly tie!”

~ C.H. Spurgeon

https://www.blueletterbible.org/comm/spurgeon_charles/sermons/2244.cfm