"The righteous" include all who are His. Even when we don't feel it. Even when we don't act like it.
The Lord knows…
the "way" we should be going and the detours we take.
the "way" we hurt and worry.
the "way" we hope and dream.
the "way" we want to serve, and the "way" we sometimes fall short.
the "way" we yearn for Him, and the "way" we sometimes hide from His presence.
The Lord knows…
This is not just intellectual knowledge, or a cold accounting of facts.
It is deep empathetic, experiential knowledge.
It comes with love and understanding.
The Lord knows.
A few weeks ago, my husband and I flew to Florida by way of Chicago. The weather in Chicago was less than perfect and those atmospheric disturbances translated into a bumpy flight. And I mean bumpy. I've flown a fair amount, and even skirted a thunderstorm once, but this flight was unnervingly turbulent. It was enough that the little guy in front of me – and his mother – made use of the sick sacks. 
Psalms. It's like half the Bible. Writing a quick study tip for Psalms is almost a lost cause. At least seven contributors added to this praisebook across 900 years. It is arranged in 5 "books," but that seems to follow the tradition of Moses' five books more than any thematic grouping. In the broadest sense, the topics deal with God's working in creation, God's working in the nation of Israel, and God's working in the life of an individual. 
Monday.
You saw me before I was born. Every day of my life was recorded in your book. Every moment was laid out before a single day had passed.