Quote :

“A promise made is a debt unpaid”

Response :

Promise is easy to say but it's hard to pay because promise is a debt that we have to pay. But sometimes will always there's an obstacle to disturb us when we want to pay the debt like we are getting sick, our neighbor passes away, and others. Human's life of course will there's a commitment and interaction with others. Except, if the human decorates theirself with a good attitude and the important attitude is to deliver/keep promises. So, pay your promise and promise will ask the responsibility in the beyond by god (Allah).