Singing Psalm 91 as a Prayer unto the Lord is Powerful; especially with the 10 Strings Davidic Harp.

A.  We can expect God’s Protection when we put our Trust in Him (Psalm 91:1,2)
 
1He who dwells in the secret place of the Most High
Shall abide under the shadow of the Almighty.
2I will say of the Lord“He is my refuge and my fortress;
My God, in Him I will trust.”
 
B.  We can expect God’s Deliverance when we set our Love upon Him (Psalm 91:14)
 
14Because he has set his love upon Me, therefore I will deliver him;
I will set him on high, because he has known My name.
 
C.  We can expect God’s Answer when we Call upon Him (Psalm 91:15,16)
 
15He shall call upon Me, and I will answer him;
willbewith him in trouble;
I will deliver him and honor him.
16With long life I will satisfy him,
And show him My salvation.”
 
You can watch the playing and listen to Psalm 91 at