Thirteen Ways of Looking at a Blackbird IV

Looking at the poem "Thirteen Ways of Looking at a Blackbird" I was struck most by the fourth passage: 

A man and woman

Are one.

A man and a woman and a blackbird 

Are one.

Summer just got over, how many of us had the opportunity to go to a wedding and listen to the same three or four readings from the bible. It is statistically likely that you also heard the following verse:

Two are better than one, because they have a good reward for their toil. For if they fall, one will lift up his fellow. But woe to him who is alone when he falls and has not another to lift him up! Again, if two lie together, they keep warm, but how can one keep warm alone? And though a man might prevail against one who is alone, two will withstand him--a threefold cord is not quickly broken. 

--Ecclesiastes 4:9-12

Now we know that Steven's is a Lucrecian, ergo, this poem cannot actually be about religion, so how do we take this? I keep thinking it is a perversion of religion. The "Holy-Spirit" or one of the three representations of the Lord is often found in the form of a snow white dove. If we believe that Stevens is deliberately taking away from that pure image and is rather inserting the blackbird as a metaphor for what life is without God, or religion then this poem becomes a lesson on what married life must be like. 

"A man and woman/Are one" this seems to refer to Ecclesiastes and the joining of the two people to create one partnership. Stevens seems to be saying sure, joining two people creates one life, but also adding in a blackbird, instead of religion, is in no way affecting their life. Whether the bird is white or black is completely irrelevant and consequently the lives of these two people are exactly the same without a religion. Life is Life.