God will protect those that love him. And, he certainly delivered the Jews from a great calamity!
"The angel of the Lord encampeth round about them that fear him, and delivereth them." - Psalm 34:7
When I was a little girl and I thought someone mistreated me, my first reaction was that I would tell my dad. I knew that he would defend and protect me, because he's my dad. If our earthly fathers love us and will defend and protect us from danger, then how much more will our Heavenly Father protect us! He loves us so much more than even our dads on earth. (And judging from my dad and my husband, that's a whole bunch!) We have no need to worry when dangers present themselves, because our Father knew they were coming even before we do. And, He's already set in place a plan for our protection.