Feast of Ss. Simon & Jude

Simon, the Zealot and Jude (Thaddaeus) were little known among the Twelve Apostles. Today the Catholic Church celebrates their feastday. They helped build up the church we now have.
Some scholars think that Zealot is probably a misnomer. Simon might not be a member of the terrorist group, Zealot. Rather, it was a description of his enthusiastic personality. The following is his name in Greek in the gospels.
Σίμων ὁ Καναναῖος (Matthew 10:4)
Σίμωνα τὸν Καναναῖον (Mark 3:18) Simon the Cananaean, which in Aramaic means Zealot, enthusiasts.
Σίμωνα τὸν καλούμενον ζηλωτὴν (Luke 6:15) Simon, the one called Zealot.
Σίμων ὁ ζηλωτὴς (Acts 1:13)
So, Mark and Matthew described Simon in Aramaic while Luke translated for Gentile readers.
The Church knows Jude better because he left us an epistle. The Christian community was undergoing internal difficulties because it was infiltrated by ungodly men.
For admission has been secretly gained by some who long ago were designated for this condemnation, ungodly persons who pervert the grace of our God into licentiousness and deny our only Master and Lord, Jesus Christ (Jude 1:4).
Near the end of his epistle, Jude offered some very concrete advice for Christian living:
But you, beloved, build yourselves up on your most holy faith; pray in the Holy Spirit;
keep yourselves in the love of God; wait for the mercy of our Lord Jesus Christ unto eternal life.
And convince some, who doubt;
save some, by snatching them out of the fire; on some have mercy with fear, hating even the garment spotted by the flesh (Jude 1:20-23).
These are very concrete practical advice applicable to Christians of any generation. But this is just the "front" and "back" cover of a book. What about the contents, the pages in-between?
What were the problems with those ungodly infiltrators?
Firstly, they led a scandalous life. So, Jude argued that God delivered the Israelites from the bondage in Egypt. Yet, God destroyed these very Israelites in the wilderness when they worship idols. Jude saw this as a sign of warning to those who are still alive that they cannot afford to take God for granted (Jude 1:5-7). Be serious in the building up of your faith, hope and charity.
Secondly, they rejected authority. Jude quoted the story of Michael contending over the corpse of Moses with Satan. Jude showed that even the powerful Michael did not fail to respect God. Who are we to be arrogant before God?
Here, we have a problem. The story Jude quoted cannot be found in the canonical Old Testament, but books outside the canon. (e.g. In this case, it was "The Assumption of Moses".) Jude also mentioned the prophecy of Enoch (Jude 1:14-15). Actually, Jude was not alone. Matthew quoted five prophecies which the birth of Jesus had fulfilled. Scholars have located only 4 of them in the canonical Old Testament. Therefore, I speculate that the last one in Matthew 2:23, probably was a quotation from books outside the canon.

My dear Advocate, there are a lot of uncertainties on earth. Taking risks has become a way of life. After we have taken all precautions, we may rest contended and let the outcomes unfold. So, help us Lord. Amen.