After feeding the four thousand with seven loaves and a few small fishes, on the east side of the Sea of Galilee, Jesus, having crossed the lake, was met on the other side by certain Pharisees, whose attitude towards him was such that he betook himself again to the boat, and recrossed the lake. On the way the disciples bethought them that they had in the boat but a single loaf: probably while the Lord was occupied with the Pharisees, one of them had gone and bought it, little thinking they were about to start again so soon. Jesus, still occupied with the antagonism of the leaders of the people, and desirous of destroying their influence on his disciples, began to warn them against them. In so doing he made use of a figure they had heard him use before--that of leaven as representing a hidden but potent and pervading energy: the kingdom of heaven, he had told them, was like leaven hid in meal, gradually leavening the whole of it. He now tells them to beware of the leaven of the Pharisees. The disciples, whose minds were occupied with their lack of provisions, the moment they heard the word leaven, thought of bread, concluded it must be because of its absence that he spoke of leaven, and imagined perhaps a warning against some danger of defilement from Pharisaical cookery: 'It is because we have taken no bread!' A leaven like that of the Pharisees was even then at work in their hearts; for the sign the Pharisees sought in the mockery of unbelief, they had had a few hours before, and had already, in respect of all that made it of value, forgotten. It is to the man who is trying to live, to the man who is obedient to the word of the Master, that the word of the Master unfolds itself. When we understand the outside of things, we think we have them: the Lord puts his things in subdefined, suggestive shapes, yielding no satisfactory meaning to the mere intellect, but unfolding themselves to the conscience and heart, to the man himself, in the process of life-effort. According as the new creation, that of reality, advances in him, the man becomes able to understand the words, the symbols, the parables of the Lord. For life, that is, action, is alone the human condition into which the light of the Living can penetrate; life alone can assimilate life, can change food into growth. See how the disciples here fooled themselves!