Spurgeon begins by defining what justification is, and how it can be distinguished from sanctification. Further, he argues that there must be proper grounds for justification. Then there must also be a means for man to have access to this justification. Finally, this justification when accessed should be manifest.
This article dwells on the redemption of Christ, and emphasizes the particularity of Christ's redemption (the Reformed view) as opposed to the Arminian understanding that Christ died to make salvation possible for man. Spurgeon then goes on to elaborate on the greatness of this redemption when considering the heinousness of the guilt of the saved, the sternness of divine justice, the nature of the sacrificial price Christ paid, and the vast number of those for whom this redemption was made.
This article considers the immutability of God, that God does not change.