Yudas 1:9-10

1:9 But even ¹  when Michael the archangel ²  was arguing with the devil and debating with him ³  concerning Moses’ body, he did not dare to bring a slanderous judgment, but said, “May the Lord rebuke you!” 1:10 But these men do not understand the things they slander, and they are being destroyed by the very things that, like irrational animals, they instinctively comprehend. ⁴ 

[1:9]  ¹ tn The word “even” is not in Greek; it is implied by the height of the contrast.

[1:9]  ² sn According to Jewish intertestamental literature (such as 1 En. 20), Michael was one of seven archangels.

[1:9]  ³ tn The sentence structure is a bit different in Greek. Literally it reads: “But Michael the archangel, when arguing with the devil and disputing.”

[1:10]  ⁴ tn Or “they should naturally comprehend.” The present tense in this context may have a conative force.

[1:10]  sn They instinctively comprehend. Like irrational animals, these false teachers do grasp one thing – the instinctive behavior of animals in heat. R. Bauckham (Jude, 2 Peter [WBC], 63) notes that “Though they claim to be guided by special spiritual insight gained in heavenly revelations, they are in fact following the sexual instincts which they share with the animals.” Jude’s focus is somewhat different from Peter’s: Peter argued that, like irrational animals who are born to be caught and killed, these men will be destroyed when destroying others (2 Pet 2:12). Jude, however, does not mention the destruction of animals, just that these false teachers will be destroyed for mimicking them.