2 Chronicles 1:8
And Solomon said unto God, Thou hast shewed great mercy unto David my father, and hast made me to reign in his stead. And Solomon said unto God, Thou hast shewed great mercy unto David my father, and hast made me to reign in his stead.
The words were spoken by Solomon to God at Gibeon. In them he acknowledged that God had shown great mercy and kindness to David his father and had established him as king in his father's place as successor on the throne. He thus recognized his kingship as a gift of God's mercy, not merely a claim of his own.
His words expressed gratitude for his own succession to the throne. They expressed gratitude for God's care for his father. They expressed trust in God's promise to David.