Even after Jesus had fed the multitude, the people wanted more miraculous signs. Jesus corrects them on the Old Testament scriptures. Moses was their earthly leader, but Moses could not have produced enough manna to feed millions of people. God supplied the bread and when that wasn’t enough, God supplied the quails. Jesus uses this to teach them about the true Bread from heaven. God, in the human form of Jesus, came to earth. God is the Creator who breathed the breath of life into us in the beginning and God is the one who sustains life now. Earthly bread make feed us physically, but it cannot sustain us forever, The True Bread is the source of life. If we partake of that Bread, we shall have eternal life.
23 For I pass on to you what I received from the Lord himself. On the night when he was betrayed, the Lord Jesus took some bread 24 and gave thanks to God for it. Then he broke it in pieces and said, “This is my body, which is given for you. Do this to remember me.—1 Cor. 11:23,24 (NLT)