The ways of the Lord and the paths, according to the prophet, are the saving writings of the holy prophets. If anyone sets his mind upon them, he will find the good way, that is, Christ.
Through Him complete sanctification comes to our souls. We are justified through faith (2 Pet 1:4), and by participation in the Holy Spirit we become partakers of the divine nature.
The great-voiced prophet Isaiah himself proclaimed Christ to us in these words: "There shall be a pure way there, and it shall be called the holy way" (Is 35:8).
He says "there," evidently in the times of the divine economy of the Only-begotten with flesh. For He became for us the pure and holy way.
Those who walk by Him will see, at the appointed times, the beautiful city of the saints and the free Jerusalem. So again the divine Psalmist himself speaks to God the Father as it were.
"Set me a law, O Lord, in Your way" (Ps 26:11). He desires to be instructed by the laws of Christ. He does not fail to know that through the evangelical instruction he goes straight toward every good and will reach the City above.
It would not be difficult to bring forward many other testimonies from the prophets. Through them we could learn that Jesus is called the holy way.
But I think there is no necessity or profit in trying to explain further matters so clear. Therefore He says, "You know the way" by which you yourselves will go to the mansions above.
He already points to this and to nothing else. Or He means that there are very many well-ordered chambers with God the Father, and that "I will go beforehand" to prepare for you a place of free dwelling in those regions.
Moreover, He says, you know that no one can obtain dwelling there through anyone else, but only through Me alone. Therefore if anyone falls away from the love of Christ, or listens to profane empty talk (1 Tim 6:20) and the impurities of perverse slanderers' words, let him beware.
If he places His ineffable and incomprehensible nature among the ranks of servants, and counts the free Word, born of the Father's essence, among creatures, or harms Him in some other way, let him finally know this.
He has lost the path of progress toward heaven and has turned aside from the furrows of his plowing, as someone has said. He must certainly undergo the punishment befitting those who are in Hades.
Therefore the all-wise Paul says that those who, through a diseased mind, deny life in Christ and return to the shadows under the law are estranged from Christ and have fallen from grace.
They do this because they prefer justification by the law (Gal 5:4). One who turns aside from a beaten and straight road must necessarily suffer harm from wandering.
In exactly the same way, I think, those who reject justification in Christ and count the instruction of evangelical life as nothing will not see the City above.
Nor will they live with the saints, for the way that leads to this is one: Christ.