"But few realize the sinfulness of sin; they flatter themselves that God is too good to punish the offender. The cases of Moses and Aaron, of David, and numerous others, show that it is not a safe thing to sin in word or thought or deed. God is a Being of infinite love and compassion. In the parting address which Moses gave to the children of Israel he said: “For the Lord thy God is a consuming fire, even a jealous God.” The touching plea made by Moses that he might be privileged to enter Canaan was steadfastly refused. The transgression at Kadesh had been open and marked; and the more exalted the position of the offender, the more distinguished the man, the firmer was the decree and the more certain the punishment. 4T 370.1"
"For our God is a consuming fire."
The EGW passage directly quotes Deuteronomy 4:24 (implied by 'parting address' and 'consuming fire') and connects it to the examples of Moses, Aaron, and David, illustrating God's justice alongside His love. The allusion is clear and intentional.
"And the Lord spake unto Moses and Aaron, Because ye believed me not, to sanctify me in the eyes of the children of Israel, therefore ye shall not bring this congregation into the land which I have given them."
The EGW passage directly refers to the incident at Kadesh and the consequence for Moses and Aaron, which is explicitly stated in Numbers 20:12. It's not just a thematic parallel; it's a direct reference to the event and its significance.