Parallel
Romans 12:11
Nestle 1904 Greek New Testament · Berean Standard Bible
τῇ σπουδῇ μὴ ὀκνηροί τῷ πνεύματι ζέοντες τῷ Κυρίῳ δουλεύοντες
Do not let your zeal subside; keep your spiritual fervor, serving the Lord.