"with trumpets. Then came the ark of God, glittering with gold, a halo of glory hovering over it, borne by priests in the rich and peculiar dress denoting their sacred office. The vast army of Israel followed in perfect order, each tribe under its respective standard. Thus they compassed the city with the ark of God. No sound was heard but the tread of that mighty host, and the solemn voice of the trumpets, echoing among the hills and resounding through the streets of Jericho. 4T 160.1"
"And seven priests shall bear before the ark seven trumpets of rams’ horns: and the seventh day ye shall compass the city seven times, and the priests shall blow with the trumpets."
EGW describes the procession around Jericho with trumpets and the ark, directly referencing and expanding upon the events described in Joshua 6:4.
With wonder and alarm the watchmen of the doomed city marked every move and reported to those in authority. They could not imagine what all this display meant. Jericho had defied the armies of Israel and the God of heaven; but when they beheld that mighty host marching around their city once each day in all the pomp and majesty of war, with the added grandeur of the sacred ark and the attendant priests, the impressive mystery of the scene struck terror to the hearts of princes and people. Then, again, they would inspect their strong defenses, feeling certain that they could successfully resist the most powerful attack. Many ridiculed the idea that any harm could come to them through these singular demonstrations on the part of their enemies; but others were awed as they beheld the majesty and splendor of the procession that each day wound grandly about the city. They remembered that forty years before, the Red Sea had parted before this people, and that a passage had just been opened f…
"Now Jericho was straitly shut up because of the children of Israel: none went out, and none came in."
While Joshua 6:1 describes Jericho's locked state, EGW elaborates on the fear and reactions of the people within the city as they witnessed the Israelites' actions. The passages share a thematic connection regarding Jericho's response to the Israelite siege.