The only way to determine who says what is to carefully look for the grammatical "VOICE" in the passage.


Basic English grammar confirms that VERSES 3-5 are all in the "WE/US" voice showing it is the people speaking.

Isaiah 2:3 And many people shall go and say, Come ye, and let us go up to the mountain of the LORD, to the house of the God of Jacob; and he will teach us of his ways, and we will walk in his paths: for out of Zion shall go forth the law, and the word of the LORD from Jerusalem.
2:4 And he shall judge among the nations, and shall rebuke many people: and they shall beat their swords into plowshares, and their spears into pruninghooks: nation shall not lift up sword against nation, neither shall they learn war any more.
2:5 O house of Jacob, come ye, and let us walk in the light of the LORD.

2:6 Therefore thou hast forsaken thy people the house of Jacob, because they be replenished from the east, and [are] soothsayers like the Philistines, and they please themselves in the children of strangers.


It is the people talking

They keep saying "LET US" "WE WILL" "LET US" showing it is still the people talking all through verse 3-5.



This is not God speaking, this is the people speaking.
The grammar confirms it.

So yes it is the people saying everything in those verses.

These people THINK they are building God's kingdom.


In verse 6 there is a change in "voice".
It is no more the "US" and "WE" voice.

Now Isaiah is speaking
saying
Therefore "Thou" referring to God
hast forsaken "them"
referring to the people who were talking in verses 3-5.

Why has God forsaken them.

Because they be replenished from east (false religious ideas??) southsayers (false prophets???) They aren't really listening to God at all.

Now notice -- these many people say --

"nation shall not lift up sword against nation, neither shall they learn war any more."

They are saying the nations will not learn war any more.

BUT scripture shows something very different for at Christ's second coming:
Rev. 19:19 the kings of the earth, and their armies, gathered together to make war against him that sat on the horse,


This passage (as well as it's equivalent in Micah 4) tell us that there will be a counterfeit kingdom gathering in the "mount of the Lord" just before Christ comes, but it does not go well with them as the rest of the chapter depicts.

"Then I was pointed to some who are in the great error of believing that it is their duty to go to Old Jerusalem, and think they have a work to do there before the Lord comes. EW 75

To the last, they (the disciples) looked for a temporal kingdom, to be established at Jerusalem. Christ's revelation of the scenes to take place at the destruction of Jerusalem, they associated with his personal coming, when he himself would punish the Jews, but would also free them from Roman bondage. He had told them definitely that he would come a second time, and they thought that probably his judgments would fall upon those who had rejected his love. He would then, they thought, lay low every stone in the temple; for they believed that no earthly power could do this....

"But as the days of Noe were," Christ continued, "so shall also the coming of the Son of man be. For as in the days that were before the flood they were eating and drinking, marrying and giving in marriage, until the day that Noe entered into the ark, and knew not until the flood came, and took them all away; so shall also the coming of the Son of man be." Christ does not here bring to view a temporal millennium,--a thousand years in which all are to prepare for eternity. He tells us that as it was in Noah's day, so will it be when the Son of man comes. {RH, December 27, 1898 par. 10}

Remember the warning, "As the days of Noe were, so shall also the coming of the Son of man be." It was because of the wickedness of the inhabitants of the old world, that they were destroyed; and today the world is following in the same way. No flattering signs of millennial glory are to be seen.

(I'm not the one advocating that no one has the right to interpret scripture --- I believe everyone needs to prayerfully ask the Holy Spirit to lead them to truth as they ponder the things in scripture)

People are rejecting Ellen White's writings so they can interpret scriptures for themselves, yet obviously everyone interprets it differently.

... it amazes me how people can now toss her writings out so they can adjust their understanding of the Bible more closely to the new age ways.