And there were in the same country shepherds staying out in the field, keeping watch over their flocks by night. And behold, an angel of the Lord appeared unto them, and the glory of the Lord shone round about them, and they were sore afraid. But the angel said unto them, Fear not, for behold, I bring you good tidings of great joy, which shall be to all people. For unto you is born this day, in the city of David, a savior, who is Christ the Lord. And this is the way you shall find the babe: he is wrapped in swaddling clothes and is lying in a manger. And suddenly there was, with the angel, a multitude of the Heavenly host, praising God and saying, Glory to God in the highest, and on earth, peace, good will to men.

And it came to pass, when the angels were gone away from them into Heaven, the shepherds said one to another, Let us now go even unto Bethlehem, and see this thing which has come to pass, which the Lord has made known unto us. And they came with haste, and found Mary, and Joseph, and the babe lying in a manger. And when they had seen, they made known abroad the saying which was told them concerning this child. All they who heard it wondered at those things which were told them by the shepherds; but Mary kept all those things and pondered them in her heart. And the shepherds returned, glorifying and praising God for all the things which they had heard and seen, as they were manifested unto them.

Source: Luke 2:2-3