The second of the words on the Cross which we owe to John is that pathetic expression, 'I thirst.' Most significant is the insight into our Lord's consciousness which John, here as elsewhere, ventures to give. Not till He knew 'that all things were accomplished' did He give heed to the pangs of thirst, which made so terrible a part of the torture of crucifixion. The strong will kept back the bodily cravings so long as any unfulfilled duty remained. Now Jesus had nothing to do but to die, and before He died He let flesh have one little alleviation. He had refused the stupefying draught which would have lessened suffering by dulling consciousness, but He asked for the draught which would momentarily slake the agony of parched lips and burning throat.
The words of verse 28 are not to be taken as meaning that Jesus said 'I thirst' with the mere intention of fulfilling the Scripture. His utterance was the plaint of a real need, not a performance to fill a part. But it is John who sees in that wholly natural cry the fulfilment of the psalm (Ps. lxix. 21). All Christ's bodily sufferings may be said to be summed up in this one word, the only one in which they found utterance. The same lips that said, 'If any man thirst, let him come unto Me, and drink,' said this. Infinitely pathetic in itself, that cry becomes almost awful in its appeal to us when we remember who uttered it, and why He bore these pangs. The very 'Fountain of living water' knew the pang of thirst that every one that thirsteth might come to the waters, and might drink, not water only, but 'wine and milk, without money or price.'
John's last contribution to our knowledge of our Lord's words on the Cross is that triumphant 'It is finished,' wherein there spoke, not only the common dying consciousness of life being ended, but the certitude, which He alone of all who have died, or will die, had the right to feel and utter, that every task was completed, that all God's will was accomplished, all Messiah's work done, all prophecy fulfilled, redemption secured, God and man reconciled. He looked back over all His life and saw no failure, no falling below the demands of the occasion, nothing that could have been bettered, nothing that should not have been there. He looked upwards, and even at that moment He heard in His soul the voice of the Father saying, 'This is My beloved Son, in whom I am well pleased!'
Christ's work is finished. It needs no supplement. It can never be repeated or imitated while the world lasts, and will not lose its power through the ages. Let us trust to it as complete for all our needs, and not seek to strengthen 'the sure foundation' which it has laid by any shifting, uncertain additions of our own. But we may remember, too, that while Christ's work is, in one aspect, finished, when He bowed His head, and by His own will 'gave up the ghost,' in another aspect His work is not finished, nor will be, until the whole benefits of His incarnation and death are diffused through, and appropriated by, the world. He is working to-day, and long ages have yet to pass, in all probability, before the voice of Him that sitteth on the throne shall say 'It is done!'