Blessed is the man
who does not walk in the counsel of the wicked
or stand in the way of sinners
or sit in the seat of mockers.
When you see the word Blessed in the book of Psalms, it could easily be translated Happy.
"Happy is the man..."
And then we see these three things:
1) Don't walk in the counsel of the wicked.
Don't listen to what they have to say. Don't go along with their advice. Don't saturate yourself with their teachings. Be aware of those teachings that are buried in television and music.
2) Don't stand in the way of sinners.
Don't align yourself with their manner of life. Don't position yourself in that thinking or lifestyle.
3) Don't sit in the seat of mockers.
Don't settle yourself in their mocking of God and his way. Don't allow yourself to be counted amoungst those who would consider the ways of God to be old or arcane.