Genesis 18:1 And the Lord appeared unto him in the plains of Mamre: and he sat in the tent door in the heat of the day; 2 And he lift up his eyes and looked, and, lo, three men stood by him: and when he saw them, he ran to meet them from the tent door, and bowed himself toward the ground,
[The Great Controversy pp 632] 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. 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.
One day when Abraham was sitting at the door of his tent in the cool of the day, he saw what seemed to him to be three men coming his way, and being disposed to kindness to all, he invited them in to have some refreshment, before going on their way. It was only after they finished eating that he realized that they we not human beings, for they asked for his wife Sarah by name.
Genesis 18:9 And they said unto him, Where is Sarah thy wife? And he said, Behold, in the tent. 10 And he said, I will certainly return unto thee according to the time of life; and, lo, Sarah thy wife shall have a son. And Sarah heard it in the tent door, which was behind him.
May God add His blessing to the study of His word. “Good night” and God bless!