“Incarnation” means to take flesh, as a body. Here it means Our Lord’s taking flesh, that is, taking a body like ours, when He became man. “Redemption” means to buy back. Let us take an example. Slaves are men or women that belong entirely to their masters, just as horses, cows, or other animals do. Slaves are bought and sold, never receive any wages for their work, get their food and clothing and no more. As they never earn money for themselves, they can never purchase their own liberty. If ever they are to be free, someone else must procure their liberty. Now, suppose I am in some country where slavery exists. I am free, but I want one hundred dollars; so I go to a slave owner and say: I want to sell myself for one hundred dollars. He buys me and I soon squander the one hundred dollars. Now I am his property, his slave; I shall never earn any wages and shall never be able to buy my freedom. No other slave can help me, for he is just in the same condition as I myself am. If I am to be free, a free man who has the money must pay for my liberty. This is exactly the condition in which all men were before Our Lord redeemed them. Adam sold himself and all his children to the devil by committing sin. He and they therefore became slaves. They could not earn any spiritual wages, that is, grace of God to purchase their liberty; and as all men were slaves one could not help another in this matter. Then Our Lord Himself came and purchased our freedom. He bought us back again, and the price He paid was His own life and blood given up upon the Cross.