There is no evidence of this so called "take on" transformation. Angels are the same in heaven as they are on the Earth, no change at all.
Wrong!
Genesis 18
King James Version
18 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,
20 And the Lord said, Because the cry of Sodom and Gomorrah is great, and because their sin is very grievous;
21 I will go down now, and see whether they have done altogether according to the cry of it, which is come unto me; and if not, I will know.
22 And the men turned their faces from thence, and went toward Sodom: but Abraham stood yet before the Lord.
Genesis 19
King James Version
19 And there came two angels to Sodom at even; and Lot sat in the gate of Sodom: and Lot seeing them rose up to meet them; and he bowed himself with his face toward the ground;
2 And he said, Behold now, my lords, turn in, I pray you, into your servant's house, and tarry all night, and wash your feet, and ye shall rise up early, and go on your ways. And they said, Nay; but we will abide in the street all night.
3 And he pressed upon them greatly; and they turned in unto him, and entered into his house; and he made them a feast, and did bake unleavened bread, and they did eat.
4 But before they lay down, the men of the city, even the men of Sodom, compassed the house round, both old and young, all the people from every quarter:
5 And they called unto Lot, and said unto him, Where are the men which came in to thee this night? bring them out unto us, that we may know them.
6 And Lot went out at the door unto them, and shut the door after him,
7 And said, I pray you, brethren, do not so wickedly.
8 Behold now, I have two daughters which have not known man; let me, I pray you, bring them out unto you, and do ye to them as is good in your eyes: only unto these men do nothing; for therefore came they under the shadow of my roof.
9 And they said, Stand back. And they said again, This one fellow came in to sojourn, and he will needs be a judge: now will we deal worse with thee, than with them. And they pressed sore upon the man, even Lot, and came near to break the door.
10 But the men put forth their hand, and pulled Lot into the house to them, and shut to the door.
11 And they smote the men that were at the door of the house with blindness, both small and great: so that they wearied themselves to find the door.
12 And the men said unto Lot, Hast thou here any besides? son in law, and thy sons, and thy daughters, and whatsoever thou hast in the city, bring them out of this place:
13 For we will destroy this place, because the cry of them is waxen great before the face of the Lord; and the Lord hath sent us to destroy it.
Hebrews 13:2
Be not forgetful to entertain strangers: for thereby some have entertained angels unawares.