The soldier on the right is offering the dying Christ a sponge soaked in vinegar, while the other pierces Him. At the same time, two iconoclasts, John VII Grammatikos and Antony I Kassymatas are whitewashing His Holy Icon with a long pole resembling the instruments of Christ's torture. The vessel with the paint is also similar to the vessel with vinegar.
The Chludov Psalter (ca. A.D. 850)
May the iconoclast heresy along with all Protestant sects be on the ash heap of history soon, in the name of Christ we pray, amen.