Of the increase of his government and peace there shall be no end, upon the throne of David, and upon his kingdom, to order it, and to establish it with justice and with righteousness from this time forth even forever. The zeal of the LORD of hosts will perform this.
All Commentaries on Isaiah 9:7 Go To Isaiah 9
Bede
AD 735
And, indeed, just as in his divinity the Mediator between God and human beings foresaw the mother of whom he willed to be born when he should so will, so also in his humanity he chose the time that he wished for his nativity. Moreover, he himself granted that that [time] should be such as he willed, namely, that in a calm among the storm of wars a singular tranquility of unusual peace should cover the whole world.
… He chose a time of utmost peace as the time when he would be born because this was the reason for his being born in the world, that he might lead the human race back to the gifts of heavenly peace.… Our Lord was born in a time of peace, so that even by the circumstance of the time he might teach that he was the very one of whom the prophecy sent before [him] spoke: “His sovereignty will be multiplied, and there will be no end of peace.” …
The very author of peace and the Maker of time sent before him a time of peace, and thus when he appeared in the flesh he opened an approach to light and proclaimed the joys of eternal peace first to the house of Jacob (that is, the Israelite people), and then to all the nations which came streaming to him. And we must not pass over the fact that the serenity of that earthly peace, at the time when the heavenly king was born, not only offered testimony to his grace but also provided a service, since it bestowed on the preachers of his word the capability of traveling over the world and spreading abroad the grace of the gospel wherever they wished.