ῥεύσουσιν [1 verse](3rd pl aor subj act) "Shall flow" is rheo, which means "to flow", "to gush," "to stream", "to run", "to fall", "to drop off", "to liquefy", "to be in a state of perpetual flux and change," [of persons] "to be inclined," [of a ship] "to leak," and "to have a flux." Or rheo, meaning Ot flow" but also "to utter," and "to speak."  Jesus may use it to mean "gush" in the sense we use it to "talk." -- This word means "to flow
 and "to utter."