Write Thing at the Write Time

Have you tried buying something defective or low class and then someone offers you to exchange that for something much better than the junk you just bought? Example, you have your old worn out jeans- faded, stained and full of holes. Then somebody offers you to exchange it for a brand new pair of pants and just by looking at it you know that it's really expensive and high quality. Would you accept it? What if it's for Free?  Yeah...I know I would definitely not pass that offer! But here's another catch- what if the person who made you that offer was the person you where annoyed with at work or at school? or the one you have hurt in the past? What would you feel? Do you deserve the offer now?  The situation is kinda like the Grace God is offering through Jesus. The Great Exchange. But I never fully understood what it truly meant; that substitution on the Cross- Him dying to take my place. I mean theologically maybe I understood but it was different when God finally show