30 And Jephthah made a vow to the Lord and said, “If you will give the Ammonites into my hand, 31 then whatever comes out from the doors of my house to meet me when I return in peace from the Ammonites shall be the Lord's, and I will offer it up for a burnt offering.” His daughter comes out front door after success. Does he really offer her as a burnt offering? What is a burnt offering? It is the LORD's.

This scripture is about an arrogant sinner doing things even the pagans don't do and find revolting. So what is getting destroyed: arrogance, self-reliance, and returning to the mind set of humility.

This act of turning him over to Satan is the whole church doing it not just an individual because his evil can affect the whole church.

The Magicians (same word used in Daniel) were professionals who communicate with the gods, summoning demonic power but also with deception "their arts". Soon they realize they can't keep copying and now know they are in the presence of real Power!

God is grieved by man's sinfulness. He is not indifferent to sin. This seems to signal a change but we know that God is unchanging. However. He is capable of an emotional response - the Father loves the Son, for example.

This is an obscure text even to Martin Luther. The verb is going/ascending not descending. Human spirits in prison doesn't hold up from the language used instead He is preaching to the fallen angels/demons and declaring His victory over sin, death and hell.

Holy things have to be handled with holiness. It was clear the Ark had to be moved but none of the instructions on how to move it were followed. But Obed is blessed by treating the Ark correctly.

Read "The Holiness of God" R.C Sproul

Jude 14 is a quote from I Enoch. Many were familiar with this book and Jude uses it to advance a point he is making and it will resonate with the audience. We see that the unpious get judged.

These are both intertestamental books and not considered part of the canon except by the Roman Catholic Church. We should probably read them as devotional speculation. If you do read them, you will see how they do not read like the canonical books of the Bible. Interesting but not to be taken too seriously.