“Wicked,” “sinners,” and “mockers” are words used as synonyms for the same group of people—the three words typify the lifestyle to be resisted. The wicked go their own way. They choose deliberately not to follow God’s counsel. This is resisted by the righteous. We get a picture of a certain separateness that runs through even the covenant people of God.
1 Blessed is the man who walks not in the counsel of the wicked, nor stands in the way of sinners, nor sits in the seat of scoffers;