Psalm 59:17 in the King James Version
Unto thee, O my strength, will I sing: for God is my defence, and the God of my mercy.
Context
16 But I will sing of your strength. Yes, I will sing aloud of your loving kindness in the morning. For you have been my high tower, a refuge in the day of my distress.
17 To you, my strength, I will sing praises. For God is my high tower, the God of my mercy.