Jude use of the Old Testament in his letter.
| Jude | Old Testament | Type |
| Jude 1:5 – Now I want to remind you, although you once fully knew it, that Jesus, who saved a people out of the land of Egypt, afterward destroyed those who did not believe. | Ex 12:41; Nu 14:32 | allusion |
| Jude 1:7 – just as Sodom and Gomorrah and the surrounding cities, which likewise indulged in sexual immorality and pursued unnatural desire, serve as an example by undergoing a punishment of eternal fire. | Ge 19:1-38 | allusion |
| Jude 1:9 – But when the archangel Michael, contending with the devil, was disputing about the body of Moses, he did not presume to pronounce a blasphemous judgment, but said, “The Lord rebuke you.” | De 34:5-6 | allusion? |
| Jude 1:11 – Woe to them! For they walked in the way of Cain and abandoned themselves for the sake of gain to Balaam’s error and perished in Korah’s rebellion. | Ge 4:8; Nu 22:1-41; Nu 16:1-50 | allusion |
| Jude 1:14 – It was also about these that Enoch, the seventh from Adam, prophesied, saying, “Behold, the Lord comes with ten thousands of his holy ones, | Ge 5:18 | allusion? |
A quotation is a word-for-word citation of the original source, often preceded by “it is written” or “saying”.
An allusion is a reference to the original source using the the same key words or thoughts without quoting word for word.
Because the New Testament writers often borrow the language of the Old Testament (allusion) rather than quote verses directly, different scholars suggest different counts for the number of times the New Testament quotes or refers to the Old Testament.
Quotes from the Septuagint (LXX) may have appear to have somewhat different wording than the linked translation of the Hebrew text.