We do not preach only one coming of Christ, but a second as well, much more glorious than the first. The first coming was marked by patience; the second will bring the crown of a divine kingdom.
In general, whatever relates to our Lord Jesus Christ has two aspects. There is a birth from God before the ages, and a birth from a virgin at the fullness of time. There is a hidden coming, like that of rain on fleece, and a coming before all eyes, still in the future.
At the first coming he was wrapped in swaddling clothes in a manger. At his second coming he will be clothed in light as in a garment. In the first coming he endured the cross, despising the shame; in the second coming he will be in glory, escorted by an army of angels.
From a catechetical instruction by Saint Cyril of Jerusalem, bishop