John 9:4

JMNT(i) 4 "It is constantly necessary (or: binding) for Me [other MSS: us] to be habitually performing the works (accomplishing the deeds; active in the acts; doing the business) of the One sending Me [other MSS: us] while it is day; night (or: a night; = darkness; cf Gen. 1:5) progressively (repeatedly; habitually) comes, when no one is able (or: has power) to continue performing work (accomplishing deeds; doing business).