James 2:20
But wilt thou know, O vain man, that faith without works is dead?
Cross-references
James 2:14 poses the question of faith without works — verse 20 answers it by calling such faith dead.
James 2:17 states the same principle that faith without works is dead, reinforcing the argument James 2:20 makes against empty faith.
James 2:26 uses a body/spirit analogy to restate that faith without works is dead, the exact point James 2:20 presses.
In James 1:26, religion without tongue control is worthless—parallel to faith without works being useless here.
Matthew 7:21 emphasizes that saying 'Lord, Lord' is insufficient; doing the Father's will is required — echoing James's point that faith without works is dead.
Matthew 7:26 compares hearing without doing to a foolish builder — directly paralleling James's argument that faith without works is futile.
John 13:17 pronounces blessing on those who know and do — directly reinforcing James's insistence that faith must be accompanied by action.
Romans 3:20 clarifies that no one is justified by works of the law — complementing James's point that works are the evidence, not the basis, of faith.