Augustine of Hippo
Catena Aurea · Johannesevangelium 19
After this, Jesus knowing that all things were now accomplished, that the Scripture might be fulfilled, saith, I thirst. Now there was set a vessel full of vinegar: and they filled a spunge with vinegar, and put it upon hyssop, and put it to his mouth. When Jesus therefore had received the vinegar, he said, It is finished: and he bowed his head, and gave up the ghost.
The hyssop around which they put the spunge full of vinegar, being a mean herb, taken to purge the breast, represents the humility of Christ, which they hemmed in and thought they had circumvented. (ὑσσώπῳ περιθέντες) For we are made clean by Christ’s humility. Nor let it perplex you that they were able to reach His mouth when He was such a height above the ground: for we read in the other Evangelists, what John omits to mention, that the spunge was put upon a reed.