Rashi on Psalms
Do not compete with the evildoers He reproves Israel that they should not compete with the success of the evildoers to do as their deeds, as (in Jer. 12:5): “how will you compete (תתחרה) with horses,” to run as they run, a atir in Old French, to compete.
Rashi on Psalms
do not envy those who commit injustice to commit injustice like them.