promised land vs heaven

promised land and heaven both are nouns.

Word	Noun	Adjective	Verb	Adverb
promised land	Yes	No	No	No
heaven	Yes	No	No	No

As nouns, promised land and heaven are synonyms defined as:

promised land and heaven: any place of complete bliss and delight and peace

Other synonyms of promised land include Eden, nirvana, paradise, Shangri-la.

promised land (noun)	heaven (noun)
any place of complete bliss and delight and peace	any place of complete bliss and delight and peace