Kurios

Even if you are not all that familiar with the Bible, I am guessing you remember the account of Moses encountering God speaking to him through a burning bush (Charlton Heston?). Moses is about to be used as an instrument in the hands of God, to both rescue the people of Israel, and to bring judgement upon the Egyptians. Moses sees a bush that is on fire and draws close. He hears God say that the ground Moses is walking on is holy (because God is there, not because the real estate is holy) and he should remove his sandals. After God tells Moses His plans, Moses says "If I come to the people of Israel and say to them, 'The God of your fathers has sent me to you,' and they ask me, 'What is his name?' what shall I say to them?" God then says,

“ I am who I am.” And he said, “ Say this to the people of Israel, ‘ I am has sent me to you. ’” 15 God also said to Moses, “ Say this to the people of Israel, ‘The Lord, the God of your fathers, the God of Abraham, the God of Isaac, and the God of Jacob, has sent me to you. ’ This is my name forever, and thus I am to be remembered throughout all generations.

When God tells Moses his name, he uses the Hebrew word Yahweh. The Old Testament is written in Hebrew. There is also a greek translation of the Old Testament called the Septuagint. The name of God in the greek language is Kurios. 

We fast forward to the New Testament; Jesus is speaking to a group of people in John chapter 8. He says is verse 58, "Truly, truly I say to you, before Abraham was, I am." The Jews Jesus was speaking to were so mad, they picked up stones and were going to stone him to death. Why? Because Jesus called himself the Kurios, and the Jews knew exactly what he was saying. Jesus is saying that he is the one who spoke to Moses through the burning bush.

Jesus is God!