Jeremiah 6:27

I have set thee for a tower and a fortress among my people, that thou mayest know and try their way.
— Jeremiah 6:27, King James Version

In other translations

World English Bible (WEB)

I have made you a tester of metals [and] a fortress among my people; that you may know and try their way.

American Standard Version (ASV)

I have made thee a trier and a fortress among my people; that thou mayest know and try their way.

Young's Literal Translation (YLT)

A watch-tower I have given thee, Among My people a fortress, And thou knowest, and hast tried their way.