My wife's step mother prayed for protection of all her children and step children, every day. Think it worked? Well, maybe God would have liked to protect her and her siblings from that man's free will, but sadly, He couldn't. They were molested by this family friend and pillar of the church, for years.
God must love free will more than he loved those kids.
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Hebrews 13:23 Know ye that our brother Timothy is set at liberty