'Conviction' in the Bible

not that we rule [like dictators] over your faith, but rather we work with you for [the increase of] your joy; for in your faith you stand firm [in your strong conviction that Jesus of Nazareth—the Messiah—is the Son of God, through whom we obtain eternal salvation].

for we walk by faith, not by sight [living our lives in a manner consistent with our confident belief in God’s promises]—

For the love of Christ controls and compels us, because we have concluded this, that One died for all, therefore all died;