The key called Promise
Doubting Castle
Deep in Pilgrim's Progress, Christian and his companion Hopeful stray from the path and are captured by Giant Despair, who throws them into the dungeon of Doubting Castle. There they are beaten, starved, and pressed by the giant to end their own lives, sinking into a hopelessness so deep that escape seems impossible. They lie in that dark cell for days, having forgotten they had any other option.
And then, in one of Bunyan's most beautiful turns, Christian remembers something. I have a key in my chest, he says, called Promise, that will, I am persuaded, open any lock in Doubting Castle. The key had been on him the whole time. They try it in the dungeon door, and it opens; in the outer door, and it opens; in the iron gate, and though it grates hard, it yields — and they walk free.
The allegory is unmistakable. Despair imprisons us, but the promises of God are the key that opens every lock, and we so often forget we are carrying them. Lamentations shows the key being turned: this I call to mind, the prophet says in his affliction, and therefore I have hope — the steadfast love of the Lord never ceases. When despair has you locked in its castle, remember the key you carry. Call to mind the promises of God, and watch the doors swing open.
“This I recall to my mind; therefore have I hope.”
— The prophet Jeremiah — Lamentations 3:21 (WEB)
Remember the key called Promise you carry — bringing God's promises to mind in the dungeon of despair, and watching the locked doors swing open.
“This is my comfort in my affliction, for your word has revived me.”
Despair specializes in amnesia: it persuades us we are trapped with no way out, and the cruelest stroke is that it makes us forget the key is already in our keeping. The interior work is to remember on purpose — to recognize the promises of God as the key to every lock, and to turn it deliberately by calling his word and character to mind, rather than waiting for a way out to appear.
This week, when despair tells you there is no way out, reach for the key: deliberately call to mind specific promises of God, speak them over your situation, and let his word revive you, turning the key in the lock rather than lying in the dungeon as if trapped.
The enemy keeps no prisoner he has not first made forgetful, persuading the captive that the cell has no key while the key called Promise rests in his own chest. A soul that remembers what it carries turns it in lock after lock — and the door that seemed immovable grates open and lets the prisoner walk free.
Despair works like a dungeon: it convinces us that we are trapped, that there is no way out, that our situation is hopeless and escape impossible. Like Christian and Hopeful in Doubting Castle, we lie in the dark and forget we have any other option — even as the key to every lock sits in our own chest, unremembered. The promises of God are that key, and despair's chief trick is to make us forget we hold them.
The way out is not to manufacture optimism but to remember. This I call to mind, says the prophet in his grief, and therefore I have hope — and what he calls to mind is the character and promises of God. Bringing God's promises to mind in the dungeon is the turning of the key; his word revives, and the doors that seemed immovable begin to open. When despair has locked you in, do not lie there as if there were no escape. Reach for the key called Promise you have been carrying all along.
- Has despair convinced me I am trapped with no way out?
- Have I forgotten the promises of God I am carrying?
- What promise could I call to mind to turn the key in the lock?
Lord, despair locks me in its castle and makes me forget I carry the key. Help me remember your promises in the dungeon. As I call your word to mind, turn the key, open the doors that seem immovable, and walk me free into hope. Amen.