Which one is syntactically correct and why?
God is us.
God is we.
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Sign up to join this communityWhich one is syntactically correct and why?
God is us.
God is we.
If you want to say that, then say God is us, not God is we.
You can say:
God is with us.
God is for us.
God is all around us.
But if you want to reverse the sentences, you must change us to We, which you already know.
Delete the preposition and make us the subject complement as in:
God is us.
We are the X people but The X people are us.
Why do you think the name of the chain store is Toy R Us and not Toys R We? Because Toys R Us is normal, natural, idiomatic spoken English and Toys R We is stilted.
A: Who's there?
B: It's me, your son.
or
C: It's us, the Robinsons.
Say It is I, your son or It is we, the Robinsons, and native Anglophones will wonder why you're hypercorrecting. Okay, my 89-year-old English-teacher stepmother says It is I, but she also says whom a lot.
Grammaticality is not a reasonable criterion for choosing a slogan or a sales pitch. You've gotta hit people where they live and know how to press the right emotional buttons. Use stilted language and people will laugh at you for being a pretentious snob.
Look at the modern world's great painters: Chagall, Picasso, Van Gogh. The colors and shapes they used for people and animals aren't correct. they're creative, artistic, beautiful.
Say what sounds good, not what sounds correct. Then people will listen. That's always been the rule.