'In the Name of the Lord' in the Bible

Then David said to the Philistine, “You come to me with a sword, a spear, and a javelin, but I come to you in the name of the Lord of hosts, the God of the armies of Israel, whom you have taunted.

Jonathan said to David, “Go in safety, inasmuch as we have sworn to each other in the name of the Lord, saying, ‘The Lord will be between me and you, and between my descendants and your descendants forever.’” Then he rose and departed, while Jonathan went into the city.