John Darby's synopsis of Luke 2, pt. 2:
We see next, that there are three things brought out by the presence of Jesus born as a child on the earth. First, glory to God in the highest. The love of God - His wisdom - His power - the fulfilment of His eternal counsels - the perfection of His ways where evil had come in - the manifestation of Himself amidst the evil in such a manner as to glorify Himself before the angels: in a word, God had so manifested Himself by the birth of Jesus, that the hosts of heaven, long familiar with His power, could raise their chorus, "Glory to God in the highest!" and every voice unites in sounding forth these praises. What love is like this love? What a purely divine thought, that God has become man! What supremacy of good over evil! What wisdom in drawing nigh to the heart of man and the heart of man back to Him! What fitness in addressing man! What maintenance of the holiness of God! What nearness to the heart of man, what participation in his wants, what experience of his condition! But beyond all, God above the evil in grace, and in that grace visiting this defiled world to make Himself known as He had never yet been known!
The second effect of the presence of Him who manifested God on the earth is that peace should be there. Rejected - His name should be an occasion of strife; but the heavenly choir are occupied with the fact of His presence… All was wrapped up in Him. The state of blessing was born in the birth of that child. Jesus was their surety. He was come into the world. The presence of the Son of God in the midst of sinners said to all spiritual intelligence, "Peace on the earth."
The third thing was the good pleasure - the affection of God in men. Nothing more simple, since Jesus was a man. He had not taken hold of angels. It was a glorious testimony that the affection, the good pleasure, of God was centred in this poor race, now far from Him, but in which He was pleased to accomplish all His glorious counsels. In a word, it was the power of God present in grace in the Person of the Son of God taking part in the nature, and interesting Himself in the lot, of a being who had departed from Him, and making him the sphere of the accomplishment of all His counsels, and of the manifestation of His grace and His nature to all His creatures. What a position for man! for it is indeed in man that all this is accomplished. The whole universe was to learn in man, and in what God therein was for man, that which God was in Himself, and the fruit of all His glorious counsels, as well as its complete rest in His presence, according to His nature of love. All this was implied in the birth of that child of whom the world took no notice. Natural and marvellous subject of praise to the holy inhabitants of heaven, unto whom God had made it known! It was glory to God in the highest.