Jesus answered them, "Most assuredly I tell you, you seek me, not because you saw signs, but because you ate of the loaves, and were filled.

 6:22-27 On the next day, the crowd which was still standing on the far side of the sea, saw that there had been only one boat, and that Jesus had not gone into the boat with his disciples, but that the disciples had gone away alone. But some boats from Tiberias put in near the place where they had eaten the bread, after the Lord had given thanks. So when they saw that Jesus was not there, nor his disciples either, they embarked on the boats, and came to Capernaum, looking for Jesus. When they had found him on the other side of the sea, they said to him: "Rabbi, when did you get here?" Jesus answered: "This is the truth I tell you--you are looking for me, not because you saw signs, but because you ate of the loaves until your stomachs were filled. Do not work for the food which perishes, but work for the food which lasts, and which gives eternal life, that food which the Son of Man will give you; for the Father--God--has set his seal upon him." 