12 Heb “[the] godly from a row of thorn bushes.” The preposition מִן (min) is comparative and the comparative element (perhaps “sharper” is the idea) is omitted. See 582 6 and §133.e.
13 Heb “the day of your watchmen, your appointed [time], is coming.” The present translation takes “watchmen” to refer to actual sentries. However, the “watchmen” could refer figuratively to the prophets who had warned Judah of approaching judgment. In this case one could translate, “The day your prophets warned about—your appointed time of punishment—is on the way.”
14 Heb “and now will be their confusion.”

In other versions

The best of them is like a brier,

the most upright of them a thorn hedge.

The day of your watchmen, of your punishment, has come;

now their confusion is at hand.

The best of them is like a brier,

the most upright worse than a thorn hedge.

The day God visits you has come,

the day your watchmen sound the alarm.

Now is the time of your confusion.

The best of them is like a brier;

the most upright is worse than a hedge of thorns.

The day of your watchmen,

the day of your punishment, is coming;

at this time their panic is here.

Even the best of them is like a brier;

the most honest is as dangerous as a hedge of thorns.

But your judgment day is coming swiftly now.

Your time of punishment is here, a time of confusion.

The best of them is like a brier;

the most upright worse than a thorn hedge.

The day of your watchman, your punishment, has come;

now their confusion will come.

The best of them is as a brier:

The most upright is sharper than a thorn hedge:

The day of thy watchmen and thy visitation cometh;

Now shall be their perplexity.

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