Jeremiah 6:27
I have set thee for a tower and a fortress among my people, that thou mayest know and try their way.
I have set thee for a tower,.... Or "in" one {d}; in a watch tower, to look about and observe the actions of the people, their sins and transgressions, and reprove them for them; as well as to descry the enemy, and give notice of danger; see Habakkuk 2:1 or, "for a trier"; since the word used comes from one which signifies to "try" metals, as gold and silver; and the rather this may be thought to be the meaning here, since the verb is made use of in this sense in the text; and the metaphor is carried on in the following words; though the word is used for towers in Isaiah 23:13 and may well enough be understood of a watchtower, agreeably with the office of the prophet; who is here addressed as a watchman, and was one to the house of Israel: and as the faithful discharge of his work required courage, as well as diligence and faithfulness, it follows, and
for a fortress among my people; not to defend them, but himself against them; or he was to consider himself as so under the divine protection, that he was as a fortress or strong tower, impregnable, and not to be dismayed and terrified with their calumnies and threatenings; see Jeremiah 1:18:
that thou mayest know and try their way; their course and manner of life, whether good or bad; which he would be able to do, being in his watch tower, and in the discharge of his duty; for the ministry of a good man is as a touchstone, by which the principles and practices of men are tried and known; for if it is heard and attended to with pleasure, it shows that the principles and practices of men are good; but if despised and rejected, the contrary is evident, see 1 John 4:5.
{d} Nwxb "in exploratoria specula", Junius & Tremellius.