'Fervor' in the Bible

His disciples remembered that it is written [in the Scriptures], “Zeal (love, concern) for Your house [and its honor] will consume Me.”

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.

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

But My righteous one [the one justified by faith] shall live by faith [respecting man’s relationship to God and trusting Him];And if he draws back [shrinking in fear], My soul has no delight in him.

For by this [kind of] faith the men of old gained [divine] approval.