Daniel 12:3

Vulgate: Qui autem docti fuerint fulgebunt quasi splendor firmamenti, et qui ad iustitiam erudiunt multos quasi stellae in perpetuas aeternitates.

Preliminaries

TO THE MOST REVEREND AND MOST ILLUSTRIOUS LORD HENRY FRANCIS VAN DER BURCH, ARCHBISHOP AND DUKE OF CAMBRAI, PRINCE OF THE HOLY ROMAN EMPIRE, COUNT OF CAMBRAI. — Quoted as the eschatological promise closing the dedicatory letter
"They that are learned shall shine as the brightness of the firmament, and they that instruct many unto justice, as stars for all eternity."

Pope Clement VIII, Jerome's Prefaces, On Worship

II. JEROME TO PAULINUS. — Jerome quotes this to distinguish learned justice from mere rusticity; the learned shine like the firmament, the just like stars
"But those who are learned shall shine like the brightness of the firmament; and those who instruct many unto justice, like stars for perpetual eternities."

Chapter I (The Six Days of Creation)

Verse 16: And God Made Two Great Lights — Saints will shine like stars in heavenly glory
""Those who are learned," he says, "will shine like the splendor of the firmament, and those who instruct many to justice, like stars for all eternity.""