'Lord God of Israel' in the Bible

He said to them, “Thus says the Lord God of Israel, ‘Every man strap his sword on his thigh and go back and forth from gate to gate throughout the camp, and every man kill his brother, and every man his friend, and every man his neighbor [all who continue pagan worship].’”

And now the Lord God of Israel has dispossessed and driven out the Amorites from before His people Israel, so [why] should you possess it?