Posca was an ancient Roman drink made by mixing water and wine vinegar. Bracing but less nutritious and generally less palatable than wine, it was typically a drink for soldiers, the lower classes, an
A Roman soldier (conventionally called "Stephaton") feeds Jesus with posca, from the Rabbula Gospels, AD 586.
Jesus was put to death by crucifixion, being nailed to an instrument made by the Romans for capital punishment, commonly named as a cross. The instrument of crucifixion is taken to be an upright woode
Posca
…days. The most famous mention of posca is in the Bible, where Jesus is given a sponge soaked in oxos (conventionally translated as "vinegar") during his crucifixion; the Gospel of John mentions that it was given to him "on hyssop." Posca was also used as an ingredient in ancient recipes, most famously mentioned in…
Christ Crucified (c. 1632) by Diego Velázquez
A depiction of the Raising of the Cross, by Sebastiano Mazzoni, 17th century, Ca' Rezzonico
Bronzino's depiction of the crucifixion with three nails, no ropes, and a hypopodium standing support, c. 1545
Christ on the Cross between two thieves. Illumination from the Vaux Passional, 16th century