What does the Bible teach about salvation through faith alone?

The doctrine of 'sola fide' asserts that individuals are justified and saved through faith alone without the works of the Law. In 2 Timothy 3:15, salvation is explicitly linked to faith in Christ Jesus, indicating that it is through this faith that believers are united with Him. This union with Christ is critical, as depicted by the metaphor of the vine and branches, which shows that genuine faith produces spiritual fruit and eternal life. This faith is not merely intellectual assent but involves a deep trust and reliance on Christ’s redemptive work.