"If any man preach any other Gospel to you, than that which you have received, let him be accursed." Gal. 1:9

Christ saves and justifies; the Just for the unjust. And he alone saves a sinner from God's wrath, and for God's glory.
This is the theme, and focus, of the Apostle Paul's letter to the brethren at the church in Galatia.
It is Paul's most serious epistle, and we need to understand it as such. Not that these words of truth won't minister to our souls with joy and peace, for they surely do. However, it is a very serious portion of God's Word.
False teachers had come in, and twisted the truth, and added to God's precious grace with the law, and with human effort, and they were leading souls into error, and in the end, condemnation.

Martin Luther had a great handle on the doctrine of justification as he learned not only from studying the Holy Scriptures, but from life's trials, which lay burdens heavy upon the soul. Here are some excellent words from the great Reformer for us to chew on:

"Moreover, the matter of justification is slippery; not of itself, for of itself it is most sure and certain, but in respect of us. I myself have good experience in this matter. I know in what hours of darkness I sometimes wrestle. I know how often I suddenly lose the beams of the Gospel, and grace, as being shadowed from me with thick and dark clouds. I know in what a slippery place even such as I who am well taught do stand, although I should have a sure footing in matters of faith.
We have good experience of this matter, and we are able to teach it to others, and this is a sure token that we understand it. But when in the conflict we should use the Gospel, which is the word of grace, consolation, and life, the law, the word of heaviness, wrath, and death rises against the Gospel, and begins to rage; and the terrors which it raises up in the conscience are no less than was that horrible show on Mount Sinai.
Again, we have against us one-half of ourselves: that is to say, the flesh, and all the powers thereof. The flesh resists the spirit and cannot believe that all the promises of God are assuredly true. It fights against the spirit, as Paul says in chapter 5:17 of this epistle: "The flesh lusteth against the spirit, and the spirit against the flesh, and these are contrary the one to the other."
So we teach continually, that the knowledge of Christ and of faith is no work of man, but simply the gift of God, who as He creates faith, so He keeps us in it. Even as He first gives faith unto us through the Word, so afterwards He exercises, increases, strengthens, and makse perfect the same in us by the Word.
Therefore the greatest service that a man can do for God is to exercise himself in true godliness, diligently to hear and to read the Word. Contrariwise, there is nothing more dangerous than to be weary of the Word."