Watchers come, &c.— By these watchers are meant, those who precede an army, and announce its approach, whom Caesar in his Commentaries calls antecessores, or antecursores. Houbigant renders the first clause of the next verse, Like the keepers of a field do they surround her: that is, "These couriers, or spies of the Chaldean army, are as diligent in their observation of Judah and Jerusalem, as the keepers of a field are of the cattle, vineyards, &c. under their care."
Related Commentaries of Jeremiah 4:16
Jeremiah 4:16
16 Make ye mention to the nations; behold, publish against Jerusalem, that watchers come from a far country, and give out their voice against the cities of Judah.