When they found him on the other side of the sea, they said to him, “Rabbi, when did you come here?” ²⁶ Jesus answered them, “Truly, truly, I say to you, you are seeking me, not because you saw signs, but because you ate your fill of the loaves. ²⁷ Do not work for the food that perishes, but for the food that endures to eternal life, which the Son of Man will give to you.  For on him God the Father has set his seal.”

(John 6:25-27 -- ESV)