108 Or “It is not useful” (L&N 65.32).
109 Grk “they throw it out.” The third person plural with unspecified subject is a circumlocution for the passive here.
110 The translation “had better listen!” captures the force of the third person imperative more effectively than the traditional “let him hear,” which sounds more like a permissive than an imperative to the modern English reader. This was Jesus’ common expression to listen and heed carefully (cf. Matt 11:15; 13:9, 43; Mark 4:9, 23; Luke 8:8).

In other versions

It is of no use either for the soil or for the manure pile. It is thrown away. He who has ears to hear, let him hear.”

It is fit neither for the soil nor for the manure pile; it is thrown out.

“Whoever has ears to hear, let them hear.”

It isn’t fit for the soil or for the manure pile; they throw it out. Let anyone who has ears to hear listen.”

Flavorless salt is good neither for the soil nor for the manure pile. It is thrown away. Anyone with ears to hear should listen and understand!”

It is usable neither for the soil nor for the manure pile; they throw it out. The one who has ears to hear, let him hear!”

It is neither fit for the land, nor yet for the dunghill; but men cast it out. He that hath ears to hear, let him hear.

Public Domain