"The Canaanites had heard of the mysterious power that seemed to be guarding this people and of the wonders wrought in their behalf, and they now summoned a strong force to repel the invaders. The attacking army had no leader. No prayer was offered that God would give them the victory. They set forth with the desperate purpose to reverse their fate or to die in battle. Though untrained in war, they were a vast multitude of armed men, and they hoped by a sudden and fierce assault to bear down all opposition. They presumptuously challenged the foe that had not dared to attack them. PP 394.1"
"Then ye answered and said unto me, We have sinned against the Lord, we will go up and fight, according to all that the Lord our God commanded us. And when ye had girded on every man his weapons of war, ye were ready to go up into the hill."
Both passages describe the Israelites attempting to fight after initially refusing to, and facing negative consequences. The EGW passage describes the Canaanites' attack, while Deuteronomy 1:41 describes Israel's failed attempt to invade after their initial refusal. The parallel lies in the theme of acting presumptuously against God's will and facing defeat.
"The Canaanites had stationed themselves upon a rocky tableland reached only by difficult passes and a steep and dangerous ascent. The immense numbers of the Hebrews could only render their defeat more terrible. They slowly threaded the mountain paths, exposed to the deadly missiles of their enemies above. Massive rocks came thundering down, marking their path with the blood of the slain. Those who reached the summit, exhausted with their ascent, were fiercely repulsed, and driven back with great loss. The field of carnage was strewn with the bodies of the dead. The army of Israel was utterly defeated. Destruction and death was the result of that rebellious experiment. PP 394.2"
"And I will set my face against you, and ye shall be slain before your enemies: they that hate you shall reign over you; and ye shall flee when none pursueth you."
The EGW passage describes the defeat of the Israelites due to their rebellious actions. Leviticus 26:17 outlines a principle where disobedience leads to defeat by enemies. The EGW passage illustrates this principle in action.
"Forced to submission at last, the survivors “returned, and wept before the Lord;” but “the Lord would not hearken” to their voice. Deuteronomy 1:45 . By their signal victory the enemies of Israel, who had before awaited with trembling the approach of that mighty host, were inspired with confidence to resist them. All the reports they had heard concerning the marvelous things that God had wrought for His people, they now regarded as false, and they felt that there was no cause for fear. That first defeat of Israel, by inspiring the Canaanites with courage and resolution, had greatly increased the difficulties of the conquest. Nothing remained for Israel but to fall back from the face of their victorious foes, into the wilderness, knowing that here must be the grave of a whole generation. PP 394.3"
"And ye returned and wept before the Lord; but the Lord would not hearken to your voice, nor give ear unto you."
Ellen White directly references Deuteronomy 1:45 in this passage.