Take refuge in the Lord

Most of the Psalms are so uplifting; when you read them, it's just 
like drinking a cold water in the hot sunny desert. Well, this is one of these Psalms, I just drew few verses out since it's little to long, but does present a clear picture in what the Psalmist wanted to say.

Psalm 37
"Fret not yourself because of evildoers;
  be not envious of wrongdoers!
  For they will soon fade like the grass
  and wither like the green herb.
  Trust in the LORD, and do good;
  dwell in the land and befriend faithfulness.
  Delight yourself in the LORD,
  and he will give you the desires of your heart.
  Commit your way to the LORD;
  trust in him, and he will act.
  He will bring forth your righteousness as the. . .

  But the meek shall inherit the land 
  and delight themselves in abundant peace. light,
  and your justice as the noonday.
  The wicked plots against the righteous
  and gnashes his teeth at him,
  but the Lord laughs at the wicked,
  for he sees that his day is coming. . .

  The steps of a man are established by the LORD,
  when he delights in his way;
  though he fall, he shall not be cast headlong,
  for the LORD upholds his hand.
  I have been young, and now am old,
  yet I have not seen the righteous forsaken
  or his children begging for bread. . .

  The LORD will not abandon him to his power
  or let him be condemned when he is brought to trial.
  Wait for the LORD and keep his way,
  and he will exalt you to inherit the land;
  you will look on when the wicked are cut off. . .

  The salvation of the righteous is from the LORD;
  he is their stronghold in the time of trouble.
  The LORD helps them and delivers them;
  he delivers them from the wicked and saves them,
   because they take refuge in him.