What is the name of this song?????

Its a Christmas song that some of the lyrics go like this, "Hallelujah he is born. In a manger in a stable long ago on Christmas Day. Lay a tiny little baby on a blanket made of hay. With his mother watching o'er him, ox and sheep kneel down before him. Hallelujah he is born." Its a trio preformed by three women and i would like to know the name and artists. Thank you soooo much!