A thorough study of this question would be very helpful. Some of our correspondence schools in Europe have issued lessons on the topic.

Chap. 306 - We shall Meet Our Guardian Angels

He shall give his angels charge over thee, to keep thee in all thy ways. Psalm 91:11. {Mar 314.1}

Not until the providences of God are seen in the light of eternity shall we understand what we owe to the care and interposition of His angels. Celestial beings have taken an active part in the affairs of men. They have appeared in garments that shone as the lightning; they have come as men, in the garb of wayfarers. They have accepted the hospitalities of human homes; they acted as guides to benighted travelers. They have thwarted the spoiler's purpose and turned aside the stroke of the destroyer. {Mar 314.2}

Though the rulers of this world know it not, yet often in their councils angels have been spokesmen. Human eyes have looked upon them. Human ears have listened to their appeals. In the council hall and the court of justice, heavenly messengers have pleaded the cause of the persecuted and oppressed. They have defeated purposes and arrested evils that would have brought wrong and suffering to God's children. To the students in the heavenly school, all this will be unfolded. {Mar 314.3}

Every redeemed one will understand the ministry of angels in his own life. The angel who was his guardian from his earliest moment; the angel who watched his steps, and covered his head in the day of peril; the angel who was with him in the valley of the shadow of death, who marked his resting place, who was the first to greet him in the resurrection morning--what will it be to hold converse with him, and to learn the history of divine interposition in the individual life, of heavenly co-operation in every work for humanity! {Mar 314.4}

With the word of God in his hands, every human being, wherever his lot in life may be cast, may have such companionship as he shall choose. In its pages he may hold converse with the noblest and best of the human race, and may listen to the voice of the Eternal as He speaks with men. As he studies and meditates upon the themes into which "the angels desire to look" (1 Peter 1:12), he may have their companionship. {Mar 314.5}

Here is what EGW wrote about guardian angels:

Though the rulers of this world know it not, yet often in their councils angels have been spokesmen. Human eyes have looked upon them. Human ears have listened to their appeals. In the council hall and the court of justice, heavenly messengers have pleaded the cause of the persecuted and oppressed. They have defeated purposes and arrested evils that would have brought wrong and suffering to God's children. To the students in the heavenly school, all this will be unfolded. {Mar 314.3}

In all ages, God has wrought through holy angels for the succor and deliverance of his people. Celestial beings have taken an active part in the affairs of men. They have appeared clothed in garments that shone as the lightning; they have come as men, in the garb of wayfarers. Angels have appeared in human form to men of God. They have rested, as if weary, under the oaks at noon. They have accepted the hospitalities of human homes. They have acted as guides to benighted travelers. They have, with their own hands, kindled the fires of the altar. They have opened prison doors, and set free the servants of the Lord. Clothed with the panoply of Heaven, they came to roll away the stone from the Saviour's tomb. {GC88 631.2}

In the form of men, angels are often in the assemblies of the righteous, and they visit the assemblies of the wicked, as they went to Sodom, to make a record of their deeds, to determine whether they have passed the boundary of God's forbearance. The Lord delights in mercy; and for the sake of a few who really serve him, he restrains calamities, and prolongs the tranquillity of multitudes. Little do sinners against God realize that they are indebted for their own lives to the faithful few whom they delight to ridicule and oppress. {GC88 631.3}

Though the rulers of this world know it not, yet often in their councils angels have been spokesmen. Human eyes have looked upon them; human ears have listened to their appeals; human lips have opposed their suggestions and ridiculed their counsels; human hands have met them with insult and abuse. In the council hall and the court of justice, these heavenly messengers have shown an intimate acquaintance with human history; they have proved themselves better able to plead the cause of the oppressed than were their ablest and most eloquent defenders. They have defeated purposes and arrested evils that would have greatly retarded the work of God, and would have caused great suffering to his people. In the hour of peril and distress, “the angel of the Lord encampeth round about them that fear him, and delivereth them.” [Psalm 34:7.] {GC88 632.1}

When has this happened?

As angels wouldn't obviously manifest themselves as angels in such situations, we will not find any record of an angel doing that,

however, if EGW said it happened, or is happening, then God can take care of how it can happen in those circumstances.

By the way, my 2nd quote wasn't exactly the same as the 1st one.

First, the word "often" is very relative; second, the passage is speaking of special occasions, when the people of God was being "persecuted and oppressed," or when decisions would have "greatly retarded the work of God" or brought "great suffering" upon His people. It obviously is not saying that the direct intervention of angels is occurring today in legislative decisions of western nations.

I can agree with this, but not to the extent that it can't happen, if necessary.

Continuing on from my previous post here, don't you think that God could give an angel all the necessary credentials needed today, if called upon to present those credentials, in order for that angel to speak before the various councils of men?

Hi JAK, things are fine here. I do believe the quote, but we must distinguish between what is written in the quote and what is not written there.

"Though the rulers of this world know it not, yet often in their councils angels have been spokesmen. Human eyes have looked upon them. Human ears have listened to their appeals. In the council hall and the court of justice, heavenly messengers have pleaded the cause of the persecuted and oppressed.

It obviously is not saying that the direct intervention of angels is occurring today in legislative decisions of western nations.

Like a sleeper agent? In other words, God gives the angel a cover story. The angel isn't really who he says he is. Kind of a lie, isn't it?

I do think that angels are at times present on earth, manifesting themselves as humans, as Johann has pointed out.

In some cases, as I have understood the situation, Christian people may be standing before a judge, an assembly, or in any special circumstances, when they have been quite desperate, not knowing how to present the truth in the best light possible. They may have sighed a prayer. Then, without knowing what was going on, they saw themselves saying or performing something that was beyond their knowledge or experience. To them it was something they could not understand. It looked like they were doing it, and yet it was some other agent in them doing it.

This is how I have understood some of the stories I have read in the past where the conclusion drawn is that it was an unseen angel working through that person.

This is how I understood many of those experiences ever since my childhood, and I have found no reason to change that picture now. Because I have seen divine miracles.

But if they manifest themselves as humans, isn't that a lie as you say?

Here is what EGW wrote about guardian angels

So only the followers of Christ have their own respective guardian angels?

Until I read the EGW quote provided by Rosangela, I thought that everybody had a guardian angel.

I assume everybody has their own recording angel.