Chp. 19 verses 1 - 12: Three months after the Jews leave Egypt they reach the wilderness of Sinai. They camp before the mountain. Moshe goes up to the mt. and Hashem calls to him to tell the house of Jacob and the children of Israel, that He had carried them on the wings of eagles and brought them to Him. That if they would keep His covenant that they would be His treasure . They would be a kingdom of priest and a holy nation. Moshe told them what Hashem said and they answered "all that Hashem has spoken we will do." Moshe repeated to Hashem what the people said. Hashem then tells them to purify themselves for two days and on the third day He would descend before the eyes of the people on to the mt. He warned the people not to touch the mt. least they die.