respecting

Part of Speech: adjective Definition:

regarding

Synonyms: about, as to, concerning, in connection with, in respect to, referring to, relating to, with reference to, with regard to

(Dictionary):

re·gard·ing

(r-gärdng) prep. In reference to; with respect to; concerning.

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(Thesaurus):

regarding

preposition. concerning, about, as to, on the subject of, re, respecting, in respect of, as regards, with reference to, in re, in the matter of, apropos, in or with regard to

"He refused to divulge any information regarding the man's whereabouts."

Nothing there about "supporting or "prohibiting" or "being deferential to" an establishment of religion.

TXnMA's interpretation:

"Congress shall keep its hands off and its mouth shut when it comes to anything having to do with the subject of religion -- pro or con."