Jesus is the Avenger

The Njyem have determined that the right way to characterize Jesus is their "Avenger". That is the translation of mikuna-bʉr. This is made up of a nominalizing prefix mi- (cl.4, which in a few cases refers to a single person), the verb -kuna, meaning "avenge", and bʉr, "people".
Everyone wants an Avenger to defend their interests in the event of an attack by a powerful enemy. The enemy most to be feared is Satan, or the devil.
There is a grain of truth in this attribution of a title to Jesus. The Bible says, "The reason the Son of God appeared was to destroy the works of the devil." (I John 3:8) It also says, "Since therefore the children share in flesh and blood, he himself likewise partook of the same things, that through death he might destroy the one who has the power of death, that is, the devil, and deliver all those who through fear of death were subject to lifelong slavery." Hebrews 2:14-15
Does this need to be balanced against other texts? I think it might need that, especially given the fact that our sins have created an enemy of God, whose justice requires the punishment of the sinner, or of his perfect substitute.