18 December O Adonai, et Dux domus Israel, qui Moysi in igne flammae rubi apparuisti, et ei in Sina legem dedisti: veni ad redimendum...
17 December O Sapientia, quae ex ore Altissimi prodiisti, attingens a fine usque ad finem, fortiter suaviterque disponens omnia: veni ad docendum nos viam...
The O Antiphons contain images from the Old Testament that give us insight into the new life that we welcome at Christmas, Our Lord...