Psa 139:1 O LORD, you have searched me and you know me."
The Psalmist is teaching that through the discipline of meditating on the law covenants, curses,  statutes, promises,and decrees he is very familiar with God's searching. God searches us according to our knowledge of His word. When we pronounce the axioms God reorders our frustrations by meeting our desire according to His decrees from eternity past. The Psalmist has been encouraged to speak the axioms that have become the communication of his heart.


Psa 139:2 You know when I sit and when I rise; you perceive my thoughts from afar. 139:3 You discern my going out and my lying down; you are familiar with all my ways. The great mystery that over whelms the Psalmist is how God can use the eternal prouncements in ordering the work even to the actions of sitting. He has a sense that in pursuing God he is being pursued by God.  He has become aware that God is present in the most common activities of life. The Psalmist has learn to react to the circumstances of life through the axioms. There is no activity that is separated from his meditation.


Psa 139:4 Before a word is on my tongue you know it completely, O LORD.
5he Psalmist is teaching that since he speaks the axioms they are the natural longings of his heart. The communication has no expression of frustration that God is with withholding or working against the Psalmist desires. The axioms are not contained by time or space.  So the Psalmist expresses control over the world in agreement with God's eternal purposes.