The Gospel in The Pilgrim's Progress

I've finished listening to The Pilgrim's Progress again. If you have not read this gem, please do. You'll soon find out why this is the most widely published book after the Bible.

Here's an excerpt where Mr. Great-heart explains the gospel/imputation to Christiana:

So then here is a righteousness that Christ, as God, has no need of; for he is God without it: Here is a righteousness that Christ, as man, has no need of to make him so; for he is perfect man without it. Again, here is a righteousness that Christ, as God-man, has no need of; for he is perfectly so without it. Here then is a righteousness that Christ, as God, and as God-man, has no need of, with reference to himself, and therefore he can spare it; a justifying righteousness, that he for himself wanteth not, and therefore giveth it away: Hence it is called the gift of righteousness. This righteousness, since Christ Jesus the Lord has made himself under the law, must be given away; for the law doth not only bind him that is under it, to do justly, but to use charity. Rom. 5:17. Wherefore he must, or ought by the law, if he hath two coats, to give one to him that hath none. Now, our Lord indeed hath two coats, one for himself, and one to spare; wherefore he freely bestows one upon those that have none. And thus, Christiana and Mercy, and the rest of you that are here, doth your pardon come by deed, or by the work of another man. Your Lord Christ is he that worked, and hath given away what he wrought for, to the next poor beggar he meets.

But again, in order to pardon by deed, there must something be paid to God as a price, as well as something prepared to cover us withal. Sin has delivered us up to the just curse of a righteous law: now from this curse we must be justified by way of redemption, a price being paid for the harms we have done; and this is by the blood of your Lord, who came and stood in your place and stead, and died your death for your transgressions: Thus has he ransomed you from your transgressions by blood, and covered your polluted and deformed souls with righteousness, Rom. 8:34; for the sake of which, God passeth by you and will not hurt you when he comes to judge the world. Gal. 3:13.

The Pilgrim's Progress, Part 2, 3rd Stage by John Bunyan.