place of worship vs house of God

place of worship and house of God both are nouns.

Word	Noun	Adjective	Verb	Adverb
place of worship	Yes	No	No	No
house of God	Yes	No	No	No

As nouns, place of worship and house of God are synonyms defined as:

place of worship and house of God: any building where congregations gather for prayer

Other synonyms of place of worship include house of prayer, house of worship.

place of worship (noun)	house of God (noun)
any building where congregations gather for prayer	any building where congregations gather for prayer