In the multiplication of the loaves and fishes we see a sign and a symbol of what God always does. God knows our needs and he cares. When God gives, he gives in abundance. The gospel account records that the leftovers from the miraculous meal was more than seven times the amount they began with. Seven is a symbol of completion and wholeness. When God gives, he gives until we are satisfied. When God works for his people he gives abundantly – more than we could deserve and more than we need.
– Don Schwager on Mt 15: 29-37