The Navi Yeshaya and Reb Shayala's Tziyun

 The Navi Yeshayahu in Chapter 65 says:

הָעָ֗ם הַמַּכְעִיסִ֥ים אוֹתִ֛י עַל־פָּנַ֖י תָּמִ֑יד

הַיֹּֽשְׁבִים֙ בַּקְּבָרִ֔ים וּבַנְּצוּרִ֖ים יָלִ֑ינוּ הָאֹֽכְלִים֙ בְּשַׂ֣ר הַחֲזִ֔יר ופרק [וּמְרַ֥ק] פִּגֻּלִ֖ים כְּלֵיהֶֽם׃

הָאֹֽמְרִים֙ קְרַ֣ב אֵלֶ֔יךָ אַל־תִּגַּשׁ־בִּ֖י כִּ֣י קְדַשְׁתִּ֑יךָ אֵ֚לֶּה עָשָׁ֣ן בְּאַפִּ֔י אֵ֥שׁ יֹקֶ֖דֶת כָּל־הַיּֽוֹם׃

I've gone with a bit of a free translation here but I believe it captures the essence of the Navi's point....

The nation that angers me, in front of me (in my face) all the time;

Those that spend all their time at the Kivrei Tzadikim and sleep there too or in areas close by that are maybe a little more protected. 

They eat and eat and eat and feed others like swine until they are stuffed from eating so much. 

They are so obsessed with all their foodstuff that their dishes become repulsively  saturated with their disgusting soups.

Those people assert that they are holier than all others and therefore demand that others separate themselves from them. "We need to isolate from others so that our children don't learn their wicked ways" they say. 

Upon those people God declares "My Anger upon them is Smoking" "They cause within me a Perpetual Burning Anger that will not Abate"