"I thirst." (John 19:28)
Was this an echo of another conversation Jesus had earlier in the Gospel of St. John, when He asks the Samaritan woman to give Him water from Jacob's well? No one overheard that exchange; remember, the disciples were returning as she was leaving. But, this short statement harkens back to that incident.
The entire story (John 4:4-42) has hints of the Passion. Jesus and the Samaritan woman met at about noon, the same time when Jesus was fixed to the Cross. While she wondered if He was greater than Jacob, recall the crowd who wondered if He was greater than Elijah. He was still hoping people would recognize Him, just as He began to reveal Himself to her (John 4:10). Her coming to believe echoed the words of the Centurion. But the greatest clue was in His words to her as she spoke of where true worship of God would take place, seemingly as a foreshadowing of what was to come (John 4:19-24).
Jesus has had nothing to drink since the Last Supper. His scourging drained much blood. His carrying the Cross sapped what little strength He was conserving. He had to be severely dehydrated. Yes, He thirsted.
But not for water. I have read somewhere His thrist upon the Cross is for the salvation of all. But, is it also possible that His human nature was thristing to see the living God?
O God, you are my God whom I seek; for your my flesh pines and my soul thirsts like the earth, parched, lifeless and without water.Jesus, in His life and in His death, has an unquenchable desire to draw all to Him. Soon, it would be sated.