Question

"Is there any possibility for this concept to be true?"
Is the word "for" used correctly?

Answer 1

I think it would sound more accurate if you rephrased it as, "Is there any possibility that this concept is true?"

Answer 2

I think "for" is being used correctly. May I know what is the sentence actually asking?

@Nahimana I think by changing "for" to "that", the meaning of the sentence got changed slightly.

Originally, it was asking if there were any other situations where this concept can be applied to and be true.

By using "that", it is asking if the concept in its current situation can be true.

Answer 3

@Duplicitycheese
You can change it to "Is there any possibility for divinity to be real?"

Answer 4

For the LEAST change of your original sentence,"Is there any possibility for this concept to be true?": "Is there any possibility OF THIS CONCEPT BEING TRUE true?"

The preferred rewrite is simply,

"Could this concept be true?"
or
"Could this concept possibly be true?",

although "possibly" is implied in the former version.

These versions are less wordy - and more importantly, much more concise and to the point.