184. " then, if they reject you, messengers before you have already been rejected
while they came even with clear arguments; and the psalms and the
enlightening book."

commentary:
in this verse, allah consoles the prophet (p.b.u.h.) and tells him that
if these seekers of pretext reject you, it is not a new or an odd thing
because the messengers before you were rejected, too. it says:

" then, if they reject you, messengers before you have already been
rejected ..."

this is in a case that those messengers had both clear signs and clear
miracles with them.

"... while they came even with clear arguments ..."

those messengers had not only clear arguments and miracles but
they brought also both firm, acceptable scriptures and the enlightening
book. it says:

"... and the psalms and the enlightening book. "