I have asked this question to R Moishe Bane, the president of the OU, and he responded

Thanks for the interest. I came across Rav Kook’s thought in an essay of his that I read in a rabbi’s home library in 1979. I have spent hours searching for the journal and have yet to track it down. I recall it was published in the second half of the 1920’s.

In a followup email where I told him I'd run it past two other scholars of R Kook he added

I will owe you a big debt of gratitude if you locate the cite. I, too, have run it by several Rav Kook scholars who did not know the article, but found the message consistent with Rav Kook’s views and presentation.

I have asked this question to R Moishe Bane, the president of the OU, and he responded

Thanks for the interest. I came across Rav Kook’s thought in an essay of his that I read in a rabbi’s home library in 1979. I have spent hours searching for the journal and have yet to track it down. I recall it was published in the second half of the 1920’s.

In a followup email where I told him I'd run it past two other scholars of R Kook he added

I will owe you a big debt of gratitude if you locate the cite. I, too, have run it by several Rav Kook scholars who did not know the article, but found the message consistent with Rav Kook’s views and presentation.

I then asked R Chanan Morrison about this - he translated lots of R Kook's writing into English (ravkooktorah.org) who answered

I also wondered what his source is. I am not familiar with such a statement, but that doesn't mean it doesn't exist.

and R Binyamin Tabady who told me this was in line with R Kook's thought but did not exist per se in writing.

I have asked this question to R Moishe Bane, the president of the OU, and he responded

Thanks for the interest. I came across Rav Kook’s thought in an essay of his that I read in a rabbi’s home library in 1979. I have spent hours searching for the journal and have yet to track it down. I recall it was published in the second half of the 1920’s.

I have asked this question to R Moishe Bane, the president of the OU, and he responded

Thanks for the interest. I came across Rav Kook’s thought in an essay of his that I read in a rabbi’s home library in 1979. I have spent hours searching for the journal and have yet to track it down. I recall it was published in the second half of the 1920’s.

In a followup email where I told him I'd run it past two other scholars of R Kook he added

I will owe you a big debt of gratitude if you locate the cite. I, too, have run it by several Rav Kook scholars who did not know the article, but found the message consistent with Rav Kook’s views and presentation.