Matthew 26:5
But they said: not during the feast, lest there be an uproar among the people. The conspiracy's constraint: not during the feast, because of the risk of popular uproar. The Passover pilgrims who filled Jerusalem were potentially sympathetic to Jesus; the riot risk made a public Passover arrest too dangerous. Judas' offer (verses 14–16) will solve the timing problem by enabling a private nighttime arrest.