Christmas Morning Lyrics
But she looks right through me with eyes cold as ice
She never answers when I ask her name
She only says I should have a great day
Perhaps I'm the fool she takes me for
Not anything more
When people they're happy and full of good cheer
Well they'll wish you and kiss you and wish you again
And they'll tell you it's peace and good will to all men
Perhaps I'm the fool they take me for
Not anything more
And everyone watched as the preacher he asked
Will you take him and love him for bad and for good
You looked at me then you told him you would
Perhaps I'm the fool you take me for
Not anything more
And I look up at the angels that float through the air
Some look down upon me, some come to my side
And they tell me that Jesus he said to say hi

This is a song about someone looking for love throughout his life and being frustrated by people's hypocrisy.
The first verse mentions "the girl"—not "the woman"—so this is probably when the singer is younger, possibly late teens. She tells him to "have a great day", but people often say things like that out of habit, and they don't really mean them. In this case, if the girl really wanted the singer to have a great day, she would acknowledge his existence, rather than looking through him "with eyes cold as ice". By asking, "What could she mean by that?" the singer is pointing out the discrepancy between the girl's words and actions.
The second verse is about Christmas. People are outwardly pleasant to each other, but their wishes of "Merry Christmas" are more reflexive than sincere. The rest of the year, they are not so pleasant—or perhaps even openly hostile—towards the people around them, so again, "What do they mean by that?"
In both cases, the singer suggests that "perhaps I'm the fool they take me for." Is he a fool for thinking that people should mean what they say and practice it year-round? Do people think he'll believe their disingenuous statements?
The third verse is about a time when the singer was older and getting married. His bride promises to "love him for bad and for good", but the singer asks, "What did you mean by that?" suggesting that she has since left him or divorced him. Again, perhaps he is a fool for expecting her to honor her vows.
The last verse is in the present day. The singer has looked for love and found it only in one individual: Jesus. So, each Christmas morning, he waits for the angels to appear to remind him that Jesus loves him. There is no chorus with this verse because he knows that Jesus is sincere, and he knows that he is not foolish for having faith.
The first three verses are depressing, but the final verse is cheerful, suggesting that the singer has finally found what he was searching for.
[Edit: formatting]