Bread of life is the theme that dominates four Sundays this month, and it actually began last month (July 26) with the sign of the multiplication of the loaves.
Signs is a particularly Johannine name for miracles. Each sign was intended to reveal something of the person and purpose of Jesus and to challenge and encourage those who witnessed the sign to believe -- or to deepen their faith.
In the sign of the multiplication of the barley loaves and dried fish, Jesus was revealed as bread from heaven. God sent him to nourish humankind with the bread of his teaching and the bread of his very self so that all might know God's love and be saved.