This psalm (read the whole after the jump) begins with a plea based on a theological commitment: Protect me because I trust in You. Just what it means to trust in God is then spelled out in v. 2:
I say to the Lord, “You are the Lord,
my only source of well-being [or, "good"].”
A prayer of David.
16:1 Protect me, O God, for I have taken shelter in you.
16:2 I say to the Lord, “You are the Lord,
my only source of well-being.”
16:3 As for God’s chosen people who are in the land,
and the leading officials I admired so much -
16:4 their troubles multiply,
they desire other gods.
I will not pour out drink offerings of blood to their gods,
nor will I make vows in the name of their gods.
16:5 Lord, you give me stability and prosperity;
you make my future secure.
16:6 It is as if I have been given fertile fields
or received a beautiful tract of land.
16:7 I will praise the Lord who guides me;
yes, during the night I reflect and learn.
16:8 I constantly trust in the Lord;
because he is at my right hand, I will not be upended.
16:9 So my heart rejoices
and I am happy;
My life is safe.
16:10 You will not abandon me to Sheol;
you will not allow your faithful follower to see the Pit.
16:11 You lead me in the path of life;
I experience absolute joy in your presence;
you always give me sheer delight.