The Truth Shows Its [Own] Way

This (the Hebrew version of it) is a commonly used phrase in rabbinic literature. It refers to the concept that a true hypothesis will tend to have - by virtue of its being true - corroborating evidence.

The earliest source of this statement that I can find in rabbinic literature is a 12th Century Biblical commentator. But I wonder if this is taken - or paraphrased - from the works of some earlier (Non-Jewish) source.

Anyone familiar with this?

I’m not familiar with it. This is just my polite returning (and bumping ) your serve. I’ll leave the court now, so that someone more knowledgeable can continue the volley.

This is the closest match I could find on Google.