{Every one that drinketh} (pas ho pin(936e)). Present active
articular participle with pas, parallel to the indefinite
relative with the second aorist active subjunctive (hos an
pi(8869)) in verse  14 . With this difference in the tenses used
(pin(936e), keep on drinking, pi(8869), once for all). Note ek and
the ablative both times, out of the water. Jesus pointed to the
well ("this water").