A very merry Christmas and a happy New Year. Let's hope it's a good one without any fear.
Here is an article about the author and the time he wrote the song.
"John Lennon’s seventh single outside of The Beatleswas written and demoed in October 1971 on acoustic guitar with Yoko Ono in their New York hotel. It had them entering into the spirit of Christmas in their own special way, with an anti-war sentiment and, as John was reported as saying, because he was fed up with “White Christmas.”"