Which preposition to use with uttereth

at Occurrences 1%

When the morning sunlight warms his lips they part a little, and he giveth utterance to the words "Oon Oom," and the language is long since dead in which he speaks, and all his worshippers are gathered to their tombs, so that none knoweth what the words portend that he uttereth at dawn.

unto Occurrences 1%

"Uttereth unto day."

Which preposition to use with  uttereth