Christmas Sunday is the name given to the day when Christmas falls on a Sunday. Christmas is a special day that is celebrated by people all over the world, as it marks the birth of Jesus Christ. Sunday is the day of the week when many people go to church to worship and learn about their faith.
When Christmas falls on a Sunday, it means that the special celebrations of Christmas will take place during a church service. Churches will decorate their buildings with beautiful decorations, such as wreaths, candles, and Christmas trees. They may also sing special Christmas songs, such as "Silent Night" or "Joy to the World."
The Christmas story will be read and taught during the sermon, which is a special message that helps people learn about God and the Bible. People may also exchange Christmas greetings and give gifts to one another, as a way of showing love and appreciation.
Overall, Christmas Sunday is a very important and special day for many people, as it combines the celebration of Jesus Christ's birth with the regular worship and teachings of their faith.