Jesus answered them; i.e. he met by response their question, but not after the fashion their curiosity might dictate, omitting any reply to their unnecessary inquiry, and even refusing to answer it. The method and time were of no real moment to his questioners.
Verily, verily, I say unto you, Ye seek me, not because ye saw signs—in the sense I am desirous you should see those miracles of healing (John 6:2) or other wonders of yesterday, viz. as "signs," "symbols," of my higher nature or of my Divine commission.
The first group of healings drew some of you to my side, not for my word, but for more healing; and though some others of you who ate off the bread said (John 6:14), "This is the promised Prophet that is coming into the world," you did not get beyond the outward seeming, the superficial phenomenon, you revealed by thus rushing to the couclusion that I was your Prophet and King, that you did not really discern the sign I gave, and ye are seeking me now, not because you have really seen "signs"—but because ye ate of the (those) loaves, and were filled up by this temporary supply of your daily want, expecting today some new, some more impressive, characteristic of the Messianic kingdom than yesterday.
You are fastening on the outward, acting on the mere physical resources which you suppose me to possess. These are not the claims I make on your loyalty or obedience.