Exodus 10:21-22

The Ninth Blow: Darkness

10:21 The Lord said to Moses, “Extend your hand toward heaven so that there may be darkness over the land of Egypt, a darkness so thick it can be felt.”

10:22 So Moses extended his hand toward heaven, and there was absolute darkness throughout the land of Egypt for three days.

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.