Exodus 19:3-8

3Then Moses went up to God, and the LORD called to him from the mountain, “This is what you are to tell the house of Jacob and explain to the sons of Israel: 4‘You have seen for yourselves what I did to Egypt, and how I carried you on eagles’ wings and brought you to Myself. 5Now if you will indeed obey My voice and keep My covenant, you will be My treasured possession out of all the nations—for the whole earth is Mine. 6And unto Me you shall be a kingdom of priests and a holy nation.’ These are the words that you are to speak to the Israelites.”

7So Moses went back and summoned the elders of the people and set before them all these words that the LORD had commanded him. 8And all the people answered together, “We will do everything that the LORD has spoken.”

So Moses brought their words back to the LORD.