NN

Well…. though I am not entirely sure of the question as Christ is fully and inescapably God… Perhaps you are asking about the OT Scriptural passages which refer to the relationship of God to His Chosen People in the metaphor of a marriage relationship.

I think that I have pointed out a number of these above but here are a few compiled for convenience:

Jer 31:32 ~ not like the covenant that I made with their fathers on the day when I took them by the hand to bring them out of the land of Egypt, my covenant that they broke, though I was their husband, declares the LORD.

Isa 54:5 ~ For your Maker is your husband, the LORD of hosts is his name; and the Holy One of Israel is your Redeemer, the God of the whole earth he is called.

All of Hosea & Song of Songs… the list goes on.

(And before anyone says “But you take the metaphor too far”… I am not even offering a suggestion as to what the metaphor of the above verses means – I am merely pointing out that it exists, and that it must mean something, and that therefore human marriage should reflect this – a point dealt with in significant detail by Paul)