"out of their Egyptian bondage, cutting a path for them through the waters of the sea, and destroying the pursuing host of Pharaoh. In their unbelief they were limiting the work of God and distrusting the hand that had hitherto safely guided them. In this instance they repeated their former error of murmuring against Moses and Aaron. “This, then, is the end of all our high hopes,” said they. “This is the land we have traveled all the way from Egypt to possess.” They blamed their leaders for bringing trouble upon Israel and again charged them with deceiving the people and leading them astray. 4T 148.2"
"And all the children of Israel murmured against Moses and against Aaron: and the whole congregation said unto them, Would God that we had died in the land of Egypt! or would God we had died in this wilderness! And wherefore hath the Lord brought us unto this land, to fall by the sword, that our wives and our children should be a prey? were it not better for us to return into Egypt?"
The EGW passage directly references the Israelites' murmuring against Moses and Aaron after being led out of Egypt, mirroring the account in Numbers 14:2-3. The quote within the EGW passage is a clear echo of the sentiment expressed in Numbers.