For seven days before the Vigil of Christmas, the Church makes use of seven solemn antiphons, commonly known as the "Seven O's," because they all begin with "O." One is sung every day at Vespers reminding us that Our Lord is to come in the evening of the world's history. They are a sort of cry or invitation of the Church, addressing her Bridegroom by some spiritual title and begging Him to come. Before and after the _Magnificat_ is the time the Church chooses for these solemn antiphons in order to keep constantly before our minds the truth that He is coming by Mary. As the days of Advent draw nearer to their close, this truth is plainly marked in the Mass. The Epistle, Gospel and Communion for Ember Wednesday (in the third week) are all full of Mary; the Gospel for Ember Friday gives the account of the Visitation; the Mass for the Fourth Sunday of Advent, as if the Church were loath to leave her out, brings Mary in at the Offertory and Communion; and that for the Vigil of Christmas devotes its Gospel to her. Let us then as we meditate on these great antiphons look in the direction of Mary where our King is as yet hidden, remembering that it is she who when Christmas comes, is going to shew unto us the Blessed Fruit of her womb JESUS. POINT I. "O WISDOM THAT PROCEEDEST FROM THE MOUTH OF THE MOST HIGH." He is the _Eternal_ Wisdom, and He has now become the _Incarnate_ Wisdom. It is to Him that the Church is calling to-day. He is the "Wisdom of God" (1 Cor. I. 24) and the Source of all wisdom; and yet as man the Spirit of God has rested upon Him and filled His human Soul with the seven-fold gifts, of which Wisdom is the first. This gift enabled Him as man to know all mysteries, all God's secret designs and plans, and to enjoy to the full all His perfections. The subject is so vast that it seems impossible for me to meditate about it, but I will take one of the many things which the Holy Scriptures say about Wisdom, one which will lead me again to the Sanctuary where I would be.