Signs of of the approaching birth of Christ

… when the hour of the Revelation of Jesus drew nigh, a few of the Magi, aware that the star of Jesus had appeared in heaven, sought and followed it, till they came unto the city which was the seat of the Kingdom of Herod. The sway of his sovereignty in those days embraced the whole of that land.

These Magi said: “Where is He that is born King of the Jews? for we have seen His star in the east and are come to worship Him!” [Matthew 2:2] When they had searched, they found out that in Bethlehem, in the land of Judea, the Child had been born. This was the sign that was manifested in the visible heaven. As to the sign in the invisible heaven—the heaven of divine knowledge and understanding—it was Yahya, son of Zachariah, who gave unto the people the tidings of the Manifestation of Jesus. Even as He hath revealed: “God announceth Yahya to thee, who shall bear witness unto the Word from God, and a great one and chaste.” [Qur'án 3:39] By the term “Word” is meant Jesus, Whose coming Yahya foretold. Moreover, in the heavenly Scriptures it is written: “John the Baptist was preaching in the wilderness of Judea, and saying, Repent ye: for the Kingdom of heaven is at hand.” [Matthew 3:1-2]  By John is meant Yahya.

- Baha’u’llah  ('The Book of Certitude')