Genesis 19:17, 26
When they were safely out of the city, one of the angels ordered, “Run for your lives! AND DON’T LOOK BACK OR STOP ANYWHERE IN THE VALLEY!
26 But Lot’s wife looked back as she was following behind him, and she turned into a pillar of salt.
(Lot’s wife ignored the angels orders from The Lord and looked back longingly at her former life, and in looking back, she took her eyes off the Lord. In effect, turning away from God’s deliverance.)