Jude 1

3 My friends, I was already looking forward to writing to you about the salvation that we share. But now I need to write urgently to you and encourage you to vigorously defend the truth about God,*1:3. Literally: "faith," or "belief." given once and for all time*1:3. "Given once and for all time": since God revealed the truth about himself at many different times in history, probably the idea here is the consummate revelation of God by himself in the Person of Jesus. to God’s holy people.