"to the Egyptians before the hand of God was stretched out over them in judgments. PP 368.3"
"And the Egyptians shall know that I am the Lord, when I stretch forth mine hand upon Egypt, and bring out the children of Israel from among them."
The EGW passage is a clear allusion to the events described in Exodus, specifically the plagues inflicted upon Egypt. The phrase "hand of God was stretched out over them in judgments" directly echoes the language and imagery used in Exodus 7:5 and other similar verses.