God is jealous over those He loves
It is this very important passion of God that allows us to completely trust Him and enable us to put ourselves into the palm of His hand.
I know that jealousy is usually associated to sin as this characteristic is usually teamed up with control, selfishness and narcissism. God’s jealousy is more like unconditional love, the exact opposite of what we see in ourselves when we experience jealous thoughts.
Mess with one of God’s children and He says that it is better if you were to tie a millstone around your neck and throw yourself into a river. That brings up another word – vengeance.
For us, this is not an option. God keeps the option of vengeance for Himself alone. Even though He furiously will destroy His enemies, He is slow in getting angry. Arouse Him and His power is incredible and mess with Him and find that exacts out the justice with little room for forgiveness.
If we are afraid of natural storms – hurricanes, cyclones, earthquakes, tsunamis – imagine when God gets engaged.
A word of advice – if you are going to mess with a follower of Jesus, consider yourself messing with God Himself.