en_tn_condensed/psa/001/001.md

who does not walk in the advice of the wicked

"who does not follow the advice of the wicked" or "who does not do what wicked people advise"

stand in the pathway with sinners

"imitate the behavior of sinful people"

or sit in the assembly of mockers

"or join those who mock God" or "or mock God with others who mock him"