'Commitment' in the Bible

Then Solomon prayed: "Blessed is the LORD God of Israel, who made a commitment to my father David and then personally fulfilled what he had promised when he said:

"LORD God of Israel, there is no one like you, God of heaven and earth, who watches over his covenant, showing gracious love to your servants who live their lives in your presence with all their hearts. It is you, LORD God, who has kept your promise to my father, your servant David, that you made to him. Indeed, you made a commitment to my father David and then personally fulfilled what you had promised today.

May the Lord your God be praised because he favored you by placing you on his throne as the one ruling on his behalf! Because of your God's love for Israel and his lasting commitment to them, he made you king over them so you could make just and right decisions."