Juan Ribalta, Adoration of the Shepherds (click to enlarge).
The Fathers of the Church, in their Greek translation of the Old Testament, found a passage from the prophet Isaiah that Paul also quotes in order to show how God’s new ways had already been foretold in the Old Testament. There we read: "God made his Word short, he abbreviated it" (Is 10:23; Rom 9:28). The Fathers interpreted this in two ways. The Son himself is the Word, the Logos; the eternal Word became small – small enough to fit into a manger. He became a child, so that the Word could be grasped by us. In this way God teaches us to love the little ones. In this way he teaches us to love the weak. In this way he teaches us respect for children. The child of Bethlehem directs our gaze towards all children who suffer and are abused in the world, the born and the unborn. Towards children who are placed as soldiers in a violent world; towards children who have to beg; towards children who suffer deprivation and hunger; towards children who are unloved. In all of these it is the Child of Bethlehem who is crying out to us; it is the God who has become small who appeals to us. Let us pray this night that the brightness of God’s love may enfold all these children. Let us ask God to help us do our part so that the dignity of children may be respected. May they all experience the light of love, which mankind needs so much more than the material necessities of life.
And so we come to the second meaning that the Fathers saw in the phrase: "God made his Word short". The Word which God speaks to us in Sacred Scripture had become long in the course of the centuries. It became long and complex, not just for the simple and unlettered, but even more so for those versed in Sacred Scripture, for the experts who evidently became entangled in details and in particular problems, almost to the extent of losing an overall perspective. Jesus "abbreviated" the Word – he showed us once more its deeper simplicity and unity. Everything taught by the Law and the Prophets is summed up – he says – in the command: "You shall love the Lord your God with all your heart, and with all your soul, and with all your mind… You shall love your neighbour as yourself" (Mt 22:37-40). This is everything – the whole faith is contained in this one act of love which embraces God and humanity.
~Benedict XVI, Homily for Midnight Mass 2006