Psalm 1:4 New English Translation

⁴Not so with the wicked!
Instead^[a] they are like wind-driven chaff.^[b]

Psalm 1:4 tn Here the Hebrew expression כִּי־אִם (ki ʾim, “instead,” cf. v. 2) introduces a contrast between the prosperity of the godly depicted in v. 3 and the destiny of the wicked described in v. 4.
Psalm 1:4 tn Heb “[they are] like the chaff which [the] wind blows about.” The Hebrew imperfect verbal form draws attention to the typical nature of the action described.sn Wind-driven chaff. In contrast to the well-rooted and productive tree described in v. 3, the wicked are like a dried up plant that has no root system and is blown away by the wind. The simile describes the destiny of the wicked (see vv. 5-6).

New English Translation (NET)