Exodus 20:22

The Altar

20:22 The Lord said to Moses: “Thus you will tell the Israelites: ‘You yourselves have seen that I have spoken with you from heaven.

Exodus 32:34

32:34 So now go, lead the people to the place I have spoken to you about. See, my angel will go before you. But on the day that I punish, I will indeed punish them for their sin.”