To disclose or reveal.
To hear or receive such a confession of sins from.
To acknowledge faith in; to profess belief in.
To unburden (oneself) of sins to God or a priest, in order to receive absolution.
To admit to the truth, particularly in the context of sins or crimes committed.
To be revealed (especially, of information intended to be kept secret).
To spill or pour out, because of a leak.