good thing
/ˌɡʊd ˈθɪŋ/noun
1In plural Desirable or pleasurable things generally; luxuries; especially tasty and appetizing food; treats. In early use chiefly in the good things of this world (also life) (now usually in theological contexts).
2A witty comment or remark; a bon mot.
3Chiefly Horse Racing. A likely success; an excellent opportunity for gain; specifically a horse that is very likely to win a race; a certainty.
4A course of action or state of affairs that is desirable or beneficial; a person who or thing which is commendable.
Phrases
too much of a good thing
to know a good thing when one sees it
on to a good thing
all good things must come to an end
Origin
Late Middle English; earliest use found in The Wycliffite Bible (early version). From good + thing.