The phrase "personal testimony" means sharing your own experiences, beliefs, or opinions about something, usually in a sincere and honest way. Full definition
It is quite another to read one based on someone's personal testimony of transition. (tinyhousebasics.com)
By giving personal testimony about our paths through our studies and our profession, we hope to engage students in conversations about scientific careers. (sciencemag.org)
I am open to more scientific information as well as personal testimony. (religion-online.org)