Mary descended from David

And that the virgin of whom it behoved Christ to be born (as we have above mentioned) must derive her lineage of the seed of David, the prophet in subsequent passages evidently asserts. “And there shall be born,” he says, “a rod from the root of Jesse”—which rod is Mary—“and a flower shall ascend from his root: and there shall rest upon him the Spirit of God, the spirit of wisdom and understanding, the spirit of discernment and piety, the spirit of counsel and truth; the spirit of God’s fear shall fill Him.”

Tertullian
Against the Jews
Chapter IX

Christ is the seal of all prophecy and vision — nothing new is to come

And (then) “righteousness eternal” was manifested, and “an Holy One of holy ones was anointed”—that is, Christ—and “sealed was vision and prophet,” and “sins” were remitted, which, through faith in the name of Christ, are washed away for all who believe on Him. But what does he mean by saying that “vision and prophecy are sealed?” That all prophets ever announced of Him that He was to come and had to suffer. Therefore, since the prophecy was fulfilled through His advent, for that reason he said that “vision and prophecy were sealed;” inasmuch as He is the signet of all prophets, fulfilling all things which in days bygone they had announced of Him. For after the advent of Christ and His passion there is no longer “vision or prophet” to announce Him as to come. In short, if this is not so, let the Jews exhibit, subsequently to Christ, any volumes of prophets, visible miracles wrought by any angels, (such as those) which in bygone days the patriarchs saw until the advent of Christ, who is now come; since which event “sealed is vision and prophecy,” that is, confirmed.  And justly does the evangelist write, “The law and the prophets (were) until John” the Baptist. For, on Christ’s being baptized, that is, on His sanctifying the waters in His own baptism, all the plenitude of bygone spiritual grace-gifts ceased in Christ, sealing as He did all vision and prophecies, which by His advent He fulfilled. Whence most firmly does he assert that His advent “seals visions and prophecy.”

Tertullian
Against the Jews
Chapter VIII