God is Spirit, and those who worship Him must worship in spirit and truth. John 4:24

But that no one is justified by the law in the sight of God is evident, for “the just shall live by faith.” Galatians 3:11

For in it the righteousness of God is revealed from faith to faith; as it is written, “The just shall live by faith.” Romans 1:17

Now the just shall live by faith; But if anyone draws back, My soul has no pleasure in him.” Hebrews 10:38