John 4:37

ἐν γὰρ τούτῳ. For in this, i.e., in the circumstances explained in the following verse, namely, that I have sent you to reap what others sowed, is the saying verified, “one soweth and another Lapeth”. ὁ λόγος, “the saying”; cf. 1 Timothy 1:15; 1 Timothy 3:1, etc. ἀληθινός without the article is the predicate and scarcely expresses that the saying receives in the present circumstances its ideal fulfilment, rather that the saying is shown to be genuine; the saying is ἄλλος ἐστὶν ὁ σπείρων καὶ ἄλλος ὁ θερίζων, various forms of which are given by Wetstein; as, ἄλλοι μὲν σπείρουσιν, ἄλλοι δʼ αὖ ἀμήσονται, “sic vos non vobis”; cf. Job 31:8; Micah 6:15; Deuteronomy 6:11. [“It was objected to Pompey that he came upon the victories of Lucullus and gathered those laurels which were due to the fortune and valour of another,” Plutarch.]