"What the devil meant for evil" is a phrase that refers to the idea that even when the devil or evil forces intend to harm or destroy someone or something, God can use those circumstances for good. This phrase is often used to provide comfort and hope to those who are going through difficult times. It is a reminder that God is sovereign and can use even the most challenging situations to bring about good. The phrase is based on the biblical story of Joseph, who was sold into slavery by his brothers but later became a powerful leader in Egypt and saved many lives during a famine. Joseph told his brothers, "You meant evil against me, but God meant it for good" (Genesis 50:20). This story illustrates the idea that God can take what was intended for evil and turn it into something good.