Anything that is extremely valuable will be counterfeited.

Fake gems have been around for thousands of years, but as the technology for making them has advanced, fakes are now harder to detect with the naked eye.

Experts advise buyers to verify a stone’s value with gem-testing labs before any sales are final. When paying big money for jewels, you want to be very careful about getting the genuine article.

It is the same with truth. We must ensure we are not falling for heresy.

“Now the Berean Jews were of more noble character than those in Thessalonica, for they received the message with great eagerness and examined the Scriptures every day to see if what Paul said was true.”—Acts 17:11.