Knowingly reporting false information is lying. Deliberately making or breaking a promise without a valid reason is promise-breaking. Using something entrusted to you against the owner’s permission is betrayal of trust.
A promise that could not be fulfilled is not always identical to deliberate deception: forgetfulness, unavoidable difficulty, and intentional fraud must be distinguished. Similarly, identifying a wrong act does not establish certain knowledge of someone’s inner faith.
The first application is self-examination: are my speech, promises, and handling of others’ property trustworthy?