a promise is a promise

A phrase emphasizing that a promise should be kept. I know you feel differently now, but you said you would help me, and a promise is a promise!

Name	Pronounced	Usage
Ustinya	-	Russian
Bolormaa	-	Mongolian
Takahiro	tah-kah-hee-ṙo	Japanese
Sham'a	-	Arabic
Antonio	ahn-TO-nyo (Spanish, Italian)	Spanish, Italian, Croatian
Mayu	mah-yoo	Japanese