absolve (one) from (something)
To declare that someone is free from blame or responsibility for something. The evidence that the defense attorney presented in court convinced the jury to absolve his client from the crime. I know you're sorry. I absolve you from your guilt, son.
absolve someone from something
and absolve someone of somethingto prove that an accused person is innocent of something; to demonstrate that someone is not responsible for something. Bob attempted to absolve himself of the crime.