Part II: Questions about The Ten Commandments
51. Q. Why is it called the Lord’s Day?
A. Because on that day Christ rose from the dead.
(Click through to read scriptural proof.)
Now after the Sabbath, toward the dawn of the first day of the week, Mary Magdalene and the other Mary went to see the tomb.
But on the first day of the week, at early dawn, they went to the tomb, taking the spices they had prepared. 2 And they found the stone rolled away from the tomb, 3 but when they went in they did not find the body of the Lord Jesus. 4 While they were perplexed about this, behold, two men stood by them in dazzling apparel. 5 And as they were frightened and bowed their faces to the ground, the men said to them, “Why do you seek the living among the dead? 6 He is not here, but has risen.
Now on the first day of the week Mary Magdalene came to the tomb early, while it was still dark, and saw that the stone had been taken away from the tomb.
Scripture quoted from the English Standard Version.
Taken from A Catechism for Girls and Boys found here.