'God of Heaven and Earth' in the Bible

and I will make you swear by the Lord, the God of heaven and the God of earth, that you will not take a wife for my son from the daughters of the Canaanites, among whom I live,

"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.

And thus they returned us answer, saying, We are the servants of the God of heaven and earth, and build the house that was builded these many years ago, which a great king of Israel builded and set up.