David is God’s friend. God is David’s friend. This intimate Psalm written three thousand of years ago outlines for us what we can expect from God in this relationship. Prayer is based on the certain facts we know about God. We’re not shooting blindly into the emptiness of heaven! We talk directly and clearly knowing what we can expect in return. David closes his prayer again affirming how he depends on God, asking for what he needs, and acknowledging that he’s asking because of the honor of God’s name. David calls on God to keep his promises for the sake of his own reputation.

Teach me to do your will,
      
for you are my God.

May your gracious Spirit lead me forward
      
on a firm footing.
For the glory of your name,
O Lord, preserve my life.
      
Because of your faithfulness,
bring me out of this distress.

In your unfailing love,
silence all my enemies
      
and destroy all my foes,
      
for I am your servant.

Are you are friend of God? You can be. Ask. Then begin to communicate with God on the terms he has established. Those terms are outlined beautifully by David in this Psalm 143.