NET
27 The Lord said to me, “I have made you like a metal assayer to test my people like ore. You are to observe them and evaluate how they behave.”
Darby
27 I have set thee among my people as an assayer, a fortress, that thou mayest know and try their way.
KJV
27 I have set thee [for] a tower [and] a fortress among my people, that thou mayest know and try their way.