Galatians 3:12 vs Romans 1:17: Faith?
How does Galatians 3:12 relate to Romans 1:17 about living by faith?

Two paths to “life” stand side by side

- Law-keeping: “The man who does these things will live by them.” (Galatians 3:12; Leviticus 18:5)

- Faith-receiving: “The righteous will live by faith.” (Romans 1:17; Habakkuk 2:4)


Galatians 3:12—what Paul states

“The law, however, is not based on faith; on the contrary, ‘The man who does these things will live by them.’”

• Law demands continual, flawless obedience.

• “Live by them” means life is earned only if every command is perfectly kept.

• Because the law is “not of faith,” mixing the two cancels faith’s reliance on God’s work.


Romans 1:17—what Paul celebrates

“For in the gospel the righteousness of God is revealed from faith to faith, as it is written: ‘The righteous will live by faith.’”

• Righteousness is given, not earned.

• “From faith to faith” underscores that the entire journey—start, middle, finish—is faith-driven.

• Life flows out of trusting what God has done, not what we do.


Old-Testament backdrop

- Leviticus 18:5 supplies Paul’s law citation (Galatians 3:12).

- Habakkuk 2:4 supplies the faith citation (Romans 1:17).

- Both verses speak of “life,” but on totally different grounds.


How the two verses interlock

Galatians 3:12 exposes the impossibility of achieving life by performance; Romans 1:17 reveals the only viable way—faith.

• Together they form Paul’s argument: no middle ground exists; one either trusts self-effort or Christ’s finished work (cf. Galatians 2:16; Ephesians 2:8-9).

• The contrast magnifies grace: law says “Do and live,” gospel says “Believe and live.”


Practical implications for believers

- Rest: Assurance comes from Christ’s righteousness credited to us (2 Corinthians 5:21).

- Freedom: No longer striving to earn God’s favor, we serve out of gratitude (Galatians 5:13).

- Consistency: Daily choices flow from the same faith that saved us (Colossians 2:6).

- Humility: Boasting is excluded because life is received, not achieved (Romans 3:27).


In short

Galatians 3:12 shows why the law cannot give life; Romans 1:17 proclaims the faith that does. One verse closes the door on works-righteousness; the other opens the door to grace-filled living by faith alone.

How can we apply 'the man who does these things will live by them'?
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