'Conviction' in the Bible

And now there remain: faith [abiding trust in God and His promises], hope [confident expectation of eternal salvation], love [unselfish love for others growing out of God’s love for me], these three [the choicest graces]; but the greatest of these is love.

Be on guard; stand firm in your faith [in God, respecting His precepts and keeping your doctrine sound]. Act like [mature] men and be courageous; be strong.