If you were saying something that already a fact established, I would accept even if it is someone already said. Like ‘GOD IS ONE’. The details of embryology mentioned in Quran is a known established fact today. If someone said the same in 16th century, it doesn’t prove anything. It may his own discovery or copied from Quran (I can say, Quran existed long before that).
That logic won’t give you the right to say anything you want on God. If you say GOD is 1 in 3, which was new to the entire world until Paul, I wouldn’t accept. God incarnate in human is already a proven pagan tribal concept existed long before Jesus (pbuh).