“My heart is fixed, O God, my heart is fixed: I will sing and give praise.” — Psalm 57:7
The historical background of this Psalm is when David was on the run from the mad king, Saul. From a cave, David cried out to God asking for liberation from his persecutors. He trusted in God even though his surroundings were dark and dreary.
The key of the chapter, in my opinion, is found within this verse. Twice he repeated that his heart was “fixed.” His seat of emotions were firmly established, stable, and settled on God. Everything within and without might have pointed towards impossibility, but David wasn’t going to follow his heart, he was going to make his heart follow God. His heart was fixed upon the God who never lies, fails, or lost a battle.
When life is difficult and appears impossible, we must fix our changing emotions on our unchanging God. Focus on God instead of your circumstances. Your eyes will follow your heart’s direction, so fix your heart on God, and your eyes will not be distracted by your surroundings.
And the verse goes on to tell us how he was fixed upon God, possibly even the result of it as well. It is found in singing and praising God. When the world around you is falling apart, sing and praise God. By singing and praising, you fix your heart upon God. And when your heart is fixed upon God, it results in singing and praising God.