1 Corinthians 4:2

2In this caseὧδεmoreoverλοιπὸνit is requiredζητεῖταιinἐνtheτοῖςstewardsοἰκονόμοιςthatἵναfaithfulπιστόςoneτιςshall be foundεὑρεθῇ.

Here, henceforth, it is required in the stewards that one should be found faithful.