There are several verses that state the Just shall live by Faith Rom 1:16-17
16 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.
17 For therein is the righteousness of God revealed from faith to faith: as it is written, The just shall live by faith.
16 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.
17 For therein is the righteousness of God revealed from faith to faith: as it is written, The just shall live by faith.
Habakkuk 2:4, “Behold, his soul is puffed up, it is not upright in him: but the just shall live by his faith (#H530).”
“steadfastness” #H530 אֱמוּנָה 'emuwnah (em-oo-naw') n-f. אֱמֻנָה 'emunah (em-oo-naw') [shortened], 1. (literally) firmness., 2. (figuratively) security., 3. (morally) fidelity, [feminine of H529], KJV: faith(-ful, -ly, -ness, (man)), set office, stability, steady, truly, truth, verily. , Root(s): H529
BDB Definition:
אֱמֻנָה / אֱמוּנָה ’ĕmûnâh 1) firmness, fidelity, steadfastness, steadiness