“The Holy Hour is not a devotion; it is a sharing in the work of redemption. Our Blessed Lord used the words “hour” and “day” in two totally different connotations in the Gospel of John. “Day” belongs to God; the “hour” belongs to evil. Seven times in the Gospel of John, the word “hour” is used, and in each instance itfers to the demonic, and to the moments when Christ is no longer in the Father’s Hands, but in the hands of men.
In the Garden, our Lord contrasted two “hours” – one was the evil hour “this is your hour” – with which Judas could turn out the lights of the world. In contrast, our Lord asked: “Could you not watch one hour with Me?”. In other words, he asked for an hour of reparation to combat the hour of evil; an hour of victimal union with the Cross to overcome the anti-love of sin.
The only time Our Lord asked the Apostles for anything was the night he went into his agony. Then he did not ask all of them … perhaps because he knew he could not count on their fidelity. But at least he expected three to be faithful to him: Peter, James and John. As often in the history of the Church since that time, evil was awake, but the disciples were asleep. That is why there came out of His anguished and lonely Heart the sigh: “Could you not watch one hour with me?” Not for an hour of activity did He plead, but for an hour of companionship. ”
Archbishop Fulton Sheen (Treasure in Clay)