Klee shay said:
we will be the perfect expression of Him as the Head, and in this way we become one with His Headship.
We cannot become one with his headship until we become full heirs with Christ,.....
Well said.
But you need to go further with your thought in order to gain a full view of the reality of what being an heir is.
Just have a clear view that this oneness we have with God is in..... LIFE, HIS DIVINE LIFE,..... and,..... NATURE, HIS DIVINE NATURE.
In fact, the two, life and nature, are in a sense just one, as every ubique life contains a unique nature.
The life of a rabbit will only ever produce the nature of a rabbit. The life of a might oak tree will only ever produce a might oak tree. And the divine life of God will only ever produce the divine nature of God.
Klee shay said:
.... after his second coming.
Not so well said.
The bible tells us that we are (are + present) heirs.
Galatians  4 : 7, "So then you are no longer a slave but a son;
and if a son,..... an heir also..... through God."
The New Testament believer is no longer a slave to works under law but is a son in life under grace.
And being a son, we are thus heirs, persons who are of full age according to the law (the Roman law is used for illustration) and who is qualified to inherit the father's estate.
The New Testament believers become heirs of God not through the law (Moses) nor through their fleshly father (Adam) but through God, even the Triune God  the Father, who sent forth the Son and the Spirit (vv. 4, 6); the Son, who accomplished redemption for sonship (v. 5); and the Spirit, who carries out the sonship within us (v. 6).
So here we can know that we ARE already heirs.
But, and this is a big butt,......... there are two aspect to being and heir,..... 1 - being made legally an heir, and 2 - receiving the inheritence that comes with being an heir.
Amd this is where many believer get confused; for every believer (sons and therefore heirs of God) must "receive" thier inheritence.
And how does a believer "receive" his or her inheritence?
First let us understand what this "inheritence" is.......
The basic understanding behind an "inheritence" is something that enriches the inheritor.
Therefore, what is it that God has that can enrich His many sons?
Ephesians  3 : 8, "To me, less than the least of all saints, was this grace given to announce to the Gentiles the unsearchable riches of Christ as the gospel..."
The apostle announced not doctrines but the riches of Christ. The riches of Christ are what Christ is to us, such as light, life, righteousness, and holiness, what He has for us, and what He accomplished, attained, and obtained for us. These riches of Christ are unsearchable and untraceable.
Christ is the riches of God. And Christ is God Himself.
Our inheritence as sons of God is this unending supply of divine mercy, divine grace, and divine glory,..... divine light, divine life, and divine love,.... divine rignteousness and divine holiness.
Lets read how we receive this inheritence, in the following scriptures........
Romans  8 : 17, "And if children, heirs also; on the one hand, heirs of God; on the other, joint heirs with Christ,.....
if indeed we suffer with Him that we may also be glorified with Him."
Titus  3 : 7, "In order that having been justified by His grace,....
we might become heirs...... according to..... the hope of eternal life."
Not merely sons but heirs who are qualified to inherit the Father's estate (Rom. 4:14; 8:17; Gal. 3:29; 4:7). Such heirs are born (John 1:12-13) of God's eternal life (John 3:16).
This eternal life enables them not only to live and enjoy God in this age but also to inherit in the coming age and in eternity all the riches of what God is to them.
Hence, there is the hope of eternal life. God's eternal life is our enjoyment today and our hope for tomorrow.
According to this hope we become heirs of God to inherit all His riches for eternity. This is the climax, the eternal goal, of His eternal salvation with His eternal life, which has been given to us by grace in Christ.
So from one scripture we can see that we ARE heirs, but from other scriptures we see that we need to receive the inheritence to complete the full process of "heirship".
First step,... become a son.
Second step,.... suffer with Him that we may also be glorified with Him.
But how do we attain to these two steps?
First, we receive the offered gift of sonship by receiving Christ,....
John  1 : 12 ---- John  1 : 13, "But as many as received Him, to them He gave the authority.... to become children of God, to those who believe into His name, who were begotten not of blood, nor of the will of the flesh, nor of the will of man, but of God."
For human beings to become children of God is for man to have the divine life and the divine nature.
And second, we receive the substance of the inheritence..... for the answer we need to go to one of Paul's most wonderful series of verses, Philippians 3 : 7-11,..... read very carefully the wonderful thing that Paul is saying, and remember, the second step is "suffer with Him that we may also be glorified with Him.".....
"But what things were gains to me, these I have counted as loss on account of Christ........ But moreover I also count all things to be loss on account of the excellency of the knowledge of Christ Jesus my Lord, on account of whom I have suffered the loss of all things and count them as refuse that I may gain Christ and be found in Him, not having my own righteousness which is out of the law, but that which is through faith in Christ, the righteousness which is out of God and based on faith, to know Him and the power of His resurrection and the fellowship of His sufferings, being conformed to His death, if perhaps I may attain to the out-resurrection from the dead."
The suffering of Christ is that He came to this earth for the sole purpose of dying on the cross so that He might come into resurrection life and bring all creation with Him.
This is the suffering of Christ,.... and this is the suffering that we must participate in so that we might receive the inheritence of our sonship.
Resurrection life, operating in us and through us, is our inheritence.
And resurrection life is simply Christ. And Christ is God.
In resurrection men inherit God.
This is God's ultimate gift to those who believe,..... Himself.
How wonderful is this.
There is nothing more wonderful.
And no, we do not need to wait on the Lord to return in order to be brought into the reality of this inheritence, for scripture says.....
Romans 8:11, "And if the Spirit of the One who raised Jesus from the dead dwells in you, He who raised Christ Jesus from the dead will also give life to your mortal bodies.....
through His Spirit who indwells you."
2 Corinthians 3:6, "Who has also made us sufficient as ministers of a new covenant, ministers not of the letter but of the Spirit; for the letter kills,.....
but the Spirit gives life."
Romans 8:2, "For the law of....
the Spirit of life.... has (present tense).... freed.... me... in Christ Jesus.... from the law of sin and of death."
Scriptures tells us that we believers have a kind of foretaste of our hope to come,..... this foretaste is the Spirit of life that has come to dwell in us.
But what is this Spirit of life that dwells in us?
Not what, but Who.....
Philippians 1:19, "For I know that for me this will turn out to salvation through your petition and the bountiful supply of....
the Spirit of Jesus Christ,"
1 Peter 1:1, "Searching into what time or what manner of time....
the Spirit of Christ in them.... was making clear, testifying beforehand of the sufferings of Christ and the glories after these."
Romans 8:9, "But you are not in the flesh, but in the spirit,...
if indeed the Spirit of God dwells in you. Yet if anyone does not have the Spirit of Christ, he is not of Him.
Romans 8:10, "But....
if Christ is in you, though the body is dead because of sin, the spirit is life because of righteousness."
This Spirit of life that dwells in us is Christ Jesus as the Spirit of Life.
I'll end here because this is getting long.
But have a clear view of the following,....
Having believed, we instantly become heirs.
But heirs must receive.
And for us to receive is a suffering, the death of the self/old man.
We cannot do this on our own; we do not have the strength to overcome our fallen state, and God knows this.
So God, upon our believing, placed Himself, His entire Godhead, in us as the Spirit of Life, so that we might have Him as the source, the strength provision from which we can live out of and thus overcome our fallen state.
It is while we are living out of this source/provision that we actually receive our inheritence. For our inheritence is actually God as our source/provision for all our living and being.
And thus, since God is dwelling in us right now, and is available to us right now, we can come into our inheritence right now.
Oh Lord Jesus,..... what a great and awesome mercy and grace this is; to be able to live a life in resurrection on this earth right now. To be able to have God as our source and provision for our moment to moment living and being.... right now, right here, on this earth at this moment.
This is a fact,...... Jesus has returned, secretly, not openly as He will in the time to come...... but secretly as the Life-Giving Spirit who comes to dwells in our regenerated spirit.
This is what the Lord Jesus told us Himself,....
John  14 : 16
"And I will ask the Father, and He will give you another Comforter, that He may be with you forever,"
Jesus is the Comforter; He has sent Himself in the Spirit to those who believe.
In love,
cj