perversion of truth

References in classic literature ?
Sedley was well, and to shake hands with an old friend; and, he added, with a desperate perversion of truth, "My mother is very well--that is, she's been very unwell, and is only waiting for the first fine day to go out and call upon Mrs.
More than bizarre behavior however, it was the clients' perversion of truth which forced him to address his previous denial of the demonic.