Today is the feast of the Nativity of John the Baptist, the only celebration of the birth other than the birth of Christ himself... Significantly it is 6 months before Christmas Eve! John is known as the "precursor" or "forerunner" of the coming Christ, he announces the coming of Christ and in some ways sets the tone of the ministry of Christ. The Orthodox Church sees John as the last of the Old Testament Prophets, sealing the old order and heralding the new. Saint Augustine of Hippo wrote...
The Church observes the birth of John as in some way sacred; and you will not find any other of the great men of old whose birth we celebrate officially. We celebrate John’s, as we celebrate Christ’s. This point cannot be passed over in silence, and if I may not perhaps be able to explain it in the way that such an important matter deserves, it is still worth thinking about it a little more deeply and fruitfully than usual.
John is born of an old woman who is barren; Christ is born of a young woman who is a virgin. That John will be born is not believed, and his father is struck dumb; that Christ will be born is believed, and he is conceived by faith. John, it seems, has been inserted as a kind of boundary between the two Testaments, the Old and the New. That he is somehow or other a boundary is something that the Lord himself indicates when he says, The Law and the prophets were until John. So he represents the old and heralds the new. Because he represents the old, he is born of an elderly couple; because he represents the new, he is revealed as a prophet in his mother’s womb. You will remember that, before he was born, at Mary’s arrival he leapt in his mother’s womb. Already he had been marked out there, designated before he was born; it was already shown whose forerunner he would be, even before he saw him. These are divine matters, and exceed the measure of human frailty.
Almighty God, by whose providence your servant John the Baptist was wonderfully born, and sent to prepare the way of your Son our Savior by preaching repentance: Make us so to follow his teaching and holy life, that we may truly repent according to his preaching; and, following his example, constantly speak the truth, boldly rebuke vice, and patiently suffer for the truth's sake; through Jesus Christ your Son our Lord, who lives and reigns with you and the Holy Spirit, one God, for ever and ever. Amen