John 19:29

Σκεῦος … μεστόν “There was set a vessel full of vinegar”; the mention of the vessel betrays the eye-witness. “The Synoptists do not mention the σκεῦος, but John had stood beside it.” Plummer. ὄξος, the vinegar used by soldiers. [Ulpian says: “vinum atque acetum milites nostri solent percipere, uno die vinum, alio die acetum”. Keim, vi. 162.] Here it seems to have been provided for the crucified, for as Weiss and Plummer observe, there were a sponge and a hyssop-reed also at hand. οἱ δὲ, i.e., the soldiers, but cf. Mark 15:36; πλήσαντες … They filled a sponge, because a cup was impracticable, and put it round a stalk of hyssop, and thus applied the restorative to His mouth. The plant called “hyssop” has not been identified. All that was requisite was a reed (cf. περιθεὶς καλάμῳ, Matthew 27:48; Mark 15:36) of two or three feet long, as the crucified was only slightly elevated.