Charles Ellicott Commentary Psalms 92:7

"When the wicked spring as the grass, And when all the workers of iniquity do flourish; It is that they shall be destroyed for ever." — Psalms 92:7 (ASV)

This verse apparently introduces the statement of the truth that the sensualist does not understand, namely, that the prosperity of the wicked is only momentary and will make their destruction all the more impressive. The Authorized Version is incorrect in introducing the second conjunction “when.”

Literally, In the springing of the wicked like grass, flourish all the workers of iniquity to be destroyed forever, that is, the prosperity of an evil class or community promotes evil, and for a time, iniquity apparently seems to have the upper hand. However, this is only so that their inevitable destruction may be more striking.

For the emblematic use of plant life in the Psalter, see the note on Psalms 1:3-4.