God protect us and ask for holyness

Then Moses went up to God, and the LORD called to him from the mountain and said, “This is what you are to say to the descendants of Jacob and what you are to tell the people of Israel: 4 ‘You yourselves have seen what I did to Egypt, and how I carried you on eagles’ wings and brought you to myself. 5 Now if you obey me fully and keep my covenant, then out of all nations you will be my treasured possession. Although the whole earth is mine, 6 you[a] will be for me a kingdom of priests and a holy nation.’ These are the words you are to speak to the Israelites.”
Exodus 19:3-6


After Moses had gone down the mountain to the people, he consecrated them, and they washed their clothes. 15 Then he said to the people, “Prepare yourselves for the third day. Abstain from sexual relations.”

16 On the morning of the third day there was thunder and lightning, with a thick cloud over the mountain, and a very loud trumpet blast. Everyone in the camp trembled. 17 Then Moses led the people out of the camp to meet with God, and they stood at the foot of the mountain. 18 Mount Sinai was covered with smoke, because the LORD descended on it in fire. The smoke billowed up from it like smoke from a furnace, and the whole mountain[b] trembled violently. 19 As the sound of the trumpet grew louder and louder, Moses spoke and the voice of God answered him.[c]

20 The LORD descended to the top of Mount Sinai and called Moses to the top of the mountain. So Moses went up 21 and the LORD said to him, “Go down and warn the people so they do not force their way through to see the LORD and many of them perish. 22 Even the priests, who approach the LORD, must consecrate themselves, or the LORD will break out against them.”

23 Moses said to the LORD, “The people cannot come up Mount Sinai, because you yourself warned us, ‘Put limits around the mountain and set it apart as holy.’”

24 The LORD replied, “Go down and bring Aaron up with you. But the priests and the people must not force their way through to come up to the LORD, or he will break out against them.”

Exodus 19:15-24