The Roman Posca — The Jesus Christ’s Last Drink
Posca, the Roman wine of the poor, was basically wine vinegar diluted with water
During the crucifixion, a Roman soldier dipped a sponge into posca and offered it to the dying Jesus Christ to drink.
Immediately one of them ran, and taking a sponge, he filled it with sour wine and put it on a reed, and gave him a drink.
— Matthew 27:48
The Roman soldiers offered Jesus Christ a drink he himself was drinking daily.
Since posca was considered a healthy and thirst-quenching drink, the soldier’s offering of posca could be seen as a gesture of charity.
On the other hand, the soldier’s act could be a grave insult, since he used a sponge on a stick. A similar tool, called xylospongium, was used instead of toilet paper in roman toilets.