Again the Brethren differed from Luther in their doctrine of the Lord's Supper. As this subject was then the fruitful source of much discussion and bloodshed, the Brethren at first endeavoured to avoid the issue at stake by siding with neither of the two great parties and falling back on the simple words of Scripture. "Some say," they said, "it is only a memorial feast, that Christ simply gave the bread as a memorial. Others say that the bread is really the body of Christ, who is seated at the right hand of God. We reject both these views; they were not taught by Christ Himself. And if anyone asks us to say in what way Christ is present in the sacrament, we reply that we have nothing to say on the subject. We simply believe what He Himself said, and enjoy what He has given."[32] But this attitude could not last for ever. As the storms of persecution raged against them, the Brethren grew more and more radical in their views. They denied the doctrine of Transubstantiation; they denied also the Lutheran doctrine of Consubstantiation; they denied that the words in St. John's Gospel about eating the flesh and drinking the blood of Christ had any reference to the Lord's Supper. They took the whole passage in a purely spiritual sense. If those words, said Bishop Luke, referred to the Sacrament, then all Catholics, except the priests, would be lost; for Catholics only ate the flesh and did not drink the blood, and could, therefore, not possess eternal life. They denied, in a word, that the Holy Communion had any value apart from the faith of the believer; they denounced the adoration of the host as idolatry; and thus they adopted much the same position as Wycliffe in England nearly two hundred years before. The Lord Christ, they said, had three modes of existence. He was present bodily at the right hand of God; He was present spiritually in the heart of every believer; He was present sacramentally, but not personally, in the bread and wine; and, therefore, when the believer knelt in prayer, he must kneel, not to the bread and wine, but only to the exalted Lord in Heaven.