Jesus said to them, "I am the bread of life. He who comes to me will not be hungry, and he who believes in me will never be thirsty.
Shall never thirst. This appears to be added without any good reason; for the office of bread is not to quench thirst, but to allay hunger. Christ therefore attributes to bread more than its nature allows. I have already said, that he employs the word bread alone because it was required by the comparison between the manna and the heavenly power of Christ, by which our souls are sustained in life. At the same time, by the word bread, he means in general all that nourishes us, and that according to the ordinary custom of his nation. For the Hebrews, by the figure of speech called synecdoche, use the word bread for dinner or supper; and when we ask from God our daily bread, (Matthew 6:11,) we include drink and all the other parts of life. The meaning therefore is, “Whoever shall betake himself to Christ, to have life from him, will want nothing, but will have in abundance all that contributes to sustain life.” 