Treasury of Scripture Knowledge
And his tail swept away one third of the stars of the sky and threw them to earth. And the dragon stood in front of the woman who was about to give birth, so that he could eat her child as soon as it was born.
A woman has pain when giving birth because her time has come. But when the child is born, she does not remember the intense suffering because she is so happy over the child being born into the world.
My little children [i.e., dear ones], I am again deeply pained [as a woman in childbirth] over your [spiritual] condition, until [the life of] Christ becomes formed in your character.
Then Herod summoned the astrologer/sages and learned from them exactly when the star had appeared.