Romans 1:17
“For therein is the righteousness of God revealed from faith to faith: as it is written, The just shall live by faith.”
So, as much as in me is, I am ready to preach the gospel to you that are at Rome also.
For I am not ashamed of the gospel of Christ: for it is the power of God unto salvation to every one that believeth; to the Jew first, and also to the Greek.
For therein is the righteousness of God revealed from faith to faith: as it is written, The just shall live by faith.
For the wrath of God is revealed from heaven against all ungodliness and unrighteousness of men, who hold the truth in unrighteousness;
Because that which may be known of God is manifest in them; for God hath shewed it unto them.
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Cross-References
“Behold, his soul which is lifted up is not upright in him: but the just shall live by his faith.”
“But seek ye first the kingdom of God, and his righteousness; and all these things shall be added unto you.”
“But that no man is justified by the law in the sight of God, it is evident: for, The just shall live by faith.”
“Behold, his soul which is lifted up is not upright in him: but the just shall live by his faith.”
“Now the just shall live by faith: but if any man draw back, my soul shall have no pleasure in him.”