The Fire of God, Fire From Heaven, and Submitting to Your Spouse

1. In Job 1, why is it called the “fire of God” when it was really fire from Satan?) In Job 1,  God gives Satan permission to attack all that Job has. Verse 16 says the fire of God fell from heaven. Why was this called the "fire of God" when it was really fire from Satan? Was this an unique power granted by God for this limited purpose or does Satan really have the power to cause supernatural events like this on earth, but he can't exercise it due to  God's intervention? Or did God do this (described as fire of God) at Satan's request as part of proving His point to Satan that Job was righteous and wouldn't reject Him? (because all other recordings of fire falling from heaven are by God)

2. In Luke 9, James and John ask Jesus if He wants THEM to call down fire from heaven. I can imagine why they might say "Jesus, why don't YOU call down fire from heaven". Why did James and John think that they had the ability to summon fire down from heaven?

3. What does it mean to submit to your husband?) I know it says “Wives, submit to your own husbands, as to the Lord. For the husband is the head of the wife even as Christ is the head of the church, his body, and is himself its Savior. Now as the church submits to Christ, so also wives should submit in everything to their husbands.” However, what does this mean? In what aspects is this to be done and when are we going against God if we don’t or aren’t submitting? 

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