This story from Pilgrim's Progress has special meaning for your Sunday School, Devotions and Bible Study group.
Christian and Hopeful should not have left the safety of the straight and narrow path.
The giant grabbed them, beat them cruelly and shut them up in his dark dungeon.
“What will we do?” they asked one another when the giant had left.
They began to pray until the morning light came.
Then Christian stood up, amazed, “How silly I am,” he said.
“I have a key called Promise, which will undo any lock!”
So Christian took the key and tried it in the dungeon door and it immediately flew open!
Joyfully they burst out and hurried to the Delightful Mountains where they could see the Heavenly city in the distance.
The shepherds welcomed them.