Mark 4:29

Is ripe (paradoi, second aorist subjunctive with otan). Whenever the fruit yields itself or permits. Putteth forth (apostellei). Sends forth the sickle. The word for apostle comes from this verb. See John 4:38 : "I sent you forth to reap" (ego apesteila uma qerizein). Sickle (drepanon) here by metonymy stands for the reapers who use it when the harvest stands ready for it (paresthken, stands by the side, present perfect indicative).