# For the chief musician

"This is for the director of music to use in worship"

# set to Al Tashheth

This probably tells what musical style or tune to use when singing the psalm.

# A psalm of David

Possible meanings are 1) David wrote the psalm or 2) the psalm is about David or 3) the psalm is in the style of David's psalms.

# Do you rulers speak righteousness?

"You rulers do not say what is right!" 

# Do you judge uprightly, you people?

"You people never judge people uprightly!"