37. ἐν γὰρ … ἀληθινός. For herein is the saying (proved) a true one, shewn by fulfilment to be a genuine proverb and not an empty phrase. See on Joh 4:23, Joh 7:28, Joh 19:35. Ἐν τούτῳ refers to what precedes (comp. Joh 15:8, Joh 16:30), in your reaping what others sowed (Joh 4:35-36).