"In obedience to the divine command Joshua marshaled the armies of Israel. No assault was to be made. They were simply to make the circuit of the city, bearing the ark of God and blowing upon trumpets. First came the warriors, a body of chosen men, not now to conquer by their own skill and prowess, but by obedience to the directions given them from God. Seven priests with trumpets followed. Then the ark of God, surrounded by a halo of divine glory, was borne by priests clad in the dress denoting their sacred office. The army of Israel followed, each tribe under its standard. Such was the procession that compassed the doomed city. No sound was heard but the tread of that mighty host and the solemn peal of the trumpets, echoing among the hills and resounding through the streets of Jericho. The circuit completed, the army returned in silence to their tents, and the ark was restored to its place in the tabernacle. PP 488.1"
"And ye shall compass the city, all ye men of war, and go round about the city once. Thus shalt thou do six days. 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. And it shall come to pass, that when they make a long blast with the ram’s horn, and when ye hear the sound of the trumpet, all the people shall shout with a great shout; and the wall of the city shall fall down flat, and the people shall ascend up every man straight before him."
The EGW passage closely follows the narrative of Joshua 6:3-5, describing the procession around Jericho with the ark and trumpets. It's a direct retelling of the biblical account.
"With wonder and alarm the watchmen of the city marked every move, and reported to those in authority. They knew not the meaning of all this display; but when they beheld that mighty host marching around their city once each day, with the sacred ark and the attendant priests, the mystery of the scene struck terror to the hearts of priest and people. Again they would inspect their strong defenses, feeling certain they could successfully resist the most powerful attack. Many ridiculed the thought that any harm could come to them through these singular demonstrations. Others were awed as they beheld the procession that each day wound about the city. They remembered that the Red Sea had once parted before this people, and that a passage had just been opened for them through the river Jordan. They knew not what further wonders God might work for them. PP 488.2"
"And it came to pass at the seventh time, when the priests blew with the trumpets, Joshua said unto the people, Shout; for the Lord hath given you the city."
The EGW passage describes the watchmen's reactions to the Israelites' actions, while Joshua 6:16 describes the culmination of those actions. The EGW passage amplifies the fear and uncertainty surrounding the events described in Joshua.
"And she said unto the men, I know that the Lord hath given you the land, and that your terror is fallen upon us, and that all the inhabitants of the land faint because of you. For we have heard how the Lord dried up the water of the Red sea for you, when ye came out of Egypt; and what ye did unto the two kings of the Amorites, that were on the other side Jordan, Sihon and Og, whom ye utterly destroyed. And as soon as we had heard these things, our hearts did melt, neither did there remain any more courage in any man, because of you: for the Lord your God, he is God in heaven above, and in earth beneath."
Both passages describe the fear and terror that the Israelites inspired in the inhabitants of the land, specifically referencing the Red Sea crossing. EGW amplifies the biblical account by detailing the watchmen's observations and the people's reactions to the Israelites' actions around Jericho.
"For six days the host of Israel made the circuit of the city. The seventh day came, and with the first dawn of light, Joshua marshaled the armies of the Lord. Now they were directed to march seven times around Jericho, and at a mighty peal from the trumpets to shout with a loud voice, for God had given them the city. PP 488.3"
"And it came to pass on the seventh day, that they rose early about the dawning of the day, and compassed the city after the same manner seven times: only on that day they compassed the city seven times."
The EGW passage directly describes the events of Joshua 6:15, including the detail of marching around the city seven times on the seventh day at dawn.