The following information is derived from the book called Studies in the Scripture Vol. 1 –copyright 1886 – 1912 edition. International Bible Students Association Series 1 The Plan of the Ages.

On page 175 – (bottom of page) C.T. Russell quotes “Rotherham, one of the most scrupulous translators, renders this passage (Heb. 2:7) as follows:- “What is man, that thou rememberest him;
Or man’s son, that visitest him? Thou madest hi less some little that messengers: With glory and honor thou crownedst him, And didst appoint him over the works of they hands.” Nor should it be inferred that a little lower in degree means less perfect. A creature may be perfect, yet (over to page 176) on a lower plane of being then another; thus a perfect horse would be lower than a
perfect man, etc. There are various natures, animate & inanimate.

 To illustrate, I have copied  the following page & table from the same book on page 176!

Each of the minerals mentioned may be pure, yet gold ranks the highest.

Though each of the orders of plants should be brought to perfection, they would still differ in nature and rank.

Likewise with animals: if each species should be brought to perfection, there would still be
variety; for perfecting a nature does not change the nature.

The grades of Spiritual being, also, though perfect, stand related to each other as higher and lower in nature or kind.

The divine nature is the highest and the superior of all spiritual natures.

Christ at his resurrection was made “so much better” than perfect angels as the divine is superior to the angelic nature. – Heb 1:3-5.

Note carefully while the classes named in the above table are distinct and separate, yet a comparison between them may be instituted, thus: The highest grade of mineral is inferior to, or a little lower  than, the lowest grade of vegetable, because in vegetation there is life. So the
highest (onto page 177) grade of vegetable is a little lower  than the lowest grade of animal life, because animal life, even in its lowest forms, has intelligence enough to be conscious of existence.

Like wise man, though the highest of animal or earthly beings, is “a little lower than the angels,” because angels are spiritual or heavenly beings.

The author goes on to talk about the sin nature of man etc for few paragraphs, so I am skipping that & going to next important passages.

The things to be restored by and through Christ are those things which were lost through Adams transgressions. (Rom. 5: 18,19.) Man did not lose a heavenly but an earthly paradise.

Under the death penalty, he did not lose spiritual but a human existence; and all that was lost was
purchased back by his Redeemer, who declared that he came to see and save that which was lost. —Luke 19:10.

In addition to the above, we have proof that the perfect man is not a spiritual being.

We are told that our Lord, before he left his glory to become a man, was “IN A FORM OF GOD” – a spiritual form, a spirit being; but since (on to page 178) to be a ransom for mankind he had to be a man, of the same nature as the sinner whose substitute in death he was to become, it was necessary that his nature be changed.

Note what the above passage states about Jesus before he was a human being!!!

And Paul tells us that he took not the nature of angles, one step lower than his own, but that he come down two steps and took the nature of man – he became a  man; he was “made flesh.” – Heb. 2:16; Phil. 2:7,8; John 1:14.  (Emphasis mine – everything else as it is in the original
text).

Notice that this teaches not only the angelic nature is now the only order of spirit being, but that it is a lower nature than that of our Lord before he became a man; and he was not then so high as he is now, for “God hath highly exalted him.” Because of his obedience in becoming man’s willing ransom. (Phil. 2:8,9.) He is now of the highest order of spirit being, a partaker of the divine (Jehovah's) nature.

Note how quickly it changes - but Jesus is now of JEHOVAH NATURE NOW!! HMMMM

But not only do we thus find proof that the divine, angelic and human natures are separate and distinct, but this proves that to be a perfect man is not to be angel any more than the perfection of angelic nature implies that angels are divine and equal with Jehovah; for Jesus took not the nature of angels, but a different nature – the nature of men; not the imperfect human nature as we now posses it, but the perfect human nature. He became a man; not a depraved and nearly dead being such as men are now, but a man in the full vigour of perfection.

Dear friends – as you can see from the C.T. Russell's own writings – Jesus was not an ANGEL – but was of  DIVINE NATURE which is one step higher then angels.

Also when Jesus came down from His Divine Nature – HE WAS NOT an Angel either. You can make up your own mind from there.

The following information is taken from the same book, but few pages further on – on what we must become if we are to have any chance of being with our Lord.

 [On page 279 to 281 we read ]- Jesus – Our nation is a consecrated nation, a covenant people. They were all baptized into Moses in the sea and in the cloud when they left Egypt. God accepted them in Moses, the mediator of their covenant, at Sinai; but they have forgotten their covenant, some are openly living as publicans and sinners, and many others are self-righteous hypocrites; hence John’s preaching and that of my disciples is repentance – a return to God and to a recognition of the covenant made; and the baptism of John signifies this repentance and reformation of heart and life, and not the new birth.

But unless you have more than this you will never see the Kingdom. Except in addition to the reformation symbolized by John’s baptism you receive a begetting and birth of the spirit, you cannot see my Kingdom.

Repentance will bring you back to a justified condition; in that condition you will be able readily to recognize me as Messiah, the anti type of Moses; and thus consecrating to me you will be begotten of the Father to a new life and the divine nature, which, if it develop and become quickened, will insure your being born a new creature, a spirit being, in the first resurrection; and as such you shall not only see but share the Kingdom.

The change to be wrought by this new birth of the Spirit is truly great, Nicodemus; for that which is born of the flesh is flesh, but that which is born of the Spirit is spirit. Wonder not, then, at my first statement, that you must be begotten from above ere you can understand, know and appreciate the things of which you inquire “Marvel not that I said unto thee, Ye must be born again.” The flesh, and the condition of those born of the flesh, and the condition of those born of the spirit, who shall enter into or constitute the Kingdom I am preaching, is very great.

Let me give you an illustration, by which you will gain some idea of the beings who, when born of the Spirit, will constitute the Kingdom:- “The wind bloweth where it listeth, and thou hearest the sound thereof, but canst not till whence it cometh and whither it goeth – so is every one that is born of the Spirit.” As the wind blows here and there, you cannot see, though it exerts an influence all about you. You know not whence it comes now where it goes.

This is as good an illustration as I can give you of those born of the born of the Spirit in the resurrection, those who will, “enter into” or constitute the Kingdom which I am not preaching.

They will all be as invisible as the wind, and men, not born of the Spirit, will neither know whence they come now whither they go. Nicodemus. - How can this be? invisible beings ! Jesus. – “Art thou a master in Israel, and knowest not these things?” – that spirit beings can be present yet invisible? Have you, who attempt to teach others, never read about Elisha and his servant, or about Balaam’s ass? And the many instances in the Scriptures which illustrate this principal that spirit beings can be present among men, yet invisible? Further, you are of the Pharisees, who professedly believe in angels as spirit beings. But this illustrates what I told you at first; Except man be begotten from above, he cannot see [know, become acquainted with, or understand as reasonable] the Kingdom of God and the various things connected with it.

If you would enter into and become a joint heir with me of that kingdom which I am announcing you must follow the light step by step. As you do so, more light will come, and this as rapidly as you will be prepared for it. I have been preaching these things now due which you can understand, and performing miracles, and you acknowledge me to be a teacher from God, but you have not acted out your faith and openly become my disciple and follower.

You must not expect to see more, until you live up to all you do see; then God will give you more light and evidence for the next step. “ Verily, verily, I say unto thee, we speak that we do know, and testify that we have seen, and the ye [Pharisees] receive not our witness.

If I have told you earthly things, and ye believe not, how shall ye believe if I tell you of the heavenly?” It would be useless for me to attempt, for you would not be convinced and my preaching would seem the more foolish to you. If what I have taught, which has been of an earthly character, or illustrated by earthly things, which you could and do understand has not brought conviction enough to your mind to lead you openly to become my disciple and follower, it would be no more convincing to you if I were to tell you of heavenly things, of which you know nothing; for no man has ever ascended into heaven, hence none could corroborate my testimony.

I, who descended from heaven, alone understand heavenly things. “No man hath ascended up
to heaven, but he that came down from heaven, even the Son of man”. A knowledge of heavenly things can be received only after the begetting of the Spirit; and the heavenly things themselves, when born of the spirit, spirit beings.

AS you can see – there is a need for change from within – the only way that this can be done – is- by allowing the Holy Spirit to enter our hearts & that He leads us to our Heavenly Father.