I just mean that gematria is definitely used by high-level people (military, politics) to send coded messages and communicate in a discreet manner, and has been for millennia. It's basically the original cryptography.

But when it is done well it is very difficult to spot, and just randomly matching words that have the same numerical value won't usually be successful.

But a lot of the old and new testament has well established gematria that gives a deeper understanding of the text.