“Now then, please let your servant remain here as my lord’s slave in place of the boy, and let the boy return with his brothers.Genesis 44:33
Joseph tests his brothers and, the same brothers who were willing to sell one of their own number into slavery are now offering themselves into slavery to save a brother!
Jesus fulfils both sides of this. He was sold (to death) by his brothers. He gave himself to save his brothers' lives.
I have sold myself into slavery of sin and have a death sentence. Jesus became a slave so that I could be free. Jesus died so that I could live