Which preposition to use with bewrays

from Occurrences 1%

Once to have been in bliss That hardly can return, Doth but bewray from whence I fell,

Of Occurrences 1%

A man long suspected of very lewd behaviour, Yet standing ever so high in Fortune's favour, As never till now he could be bewrayed Of any offence, that to him might be laid: Now wanting (belike) his wonted bravery, He thought to supply it by murther and robbery.

Which preposition to use with  bewrays