A Revocation
Personified abstractions
Wyatt uses 'Faith' and 'Truth' as characters that can die or flee, turning emotional betrayal into a dramatic scene.
Legal language of promise
The repeated 'promised' signals this is like a contract being broken. Wyatt frames romantic betrayal as a legal breach.
Double/doubleness wordplay
Repeated 'double' suggests both emotional duplicity and the mathematical sense of being divided against oneself.
Renaissance courtly love vocabulary
Phrases like 'farewell' and 'unkist' reveal this as a formal complaint against a lover's betrayal, following strict poetic conventions.