<p>6:30 <i>They replied to him: What then will you do for a sign, so that we may see and believe you? What work will you do?</i>- The Lord could have spoken words similar to Heb. 11:1 to them- He could have corrected them by saying that actually, faith is not related to what you can see. You cannot &ldquo;see and believe&rdquo; in the true sense of belief. But the Lord doesn&rsquo;t do that. He says that He in front of them is the bread of God, miraculously given. And their critical tone changes: &ldquo;Lord, evermore give us this bread&rdquo; (:34). This surely is our pattern- not to necessarily correct every error when we see it, but to pick up something the other person has said and develop it, to bring them towards truth.</p><p>The sign or miracle they wanted was of yet more free bread, in order to compare with Moses who had given Israel manna. They had been given that sign- but they wanted it again, that they might benefit from it. They were missing the point that the Lord was greater than Moses.</p>