Ephesians 1

There was so much in Ephesians 1, that I re-read it again this morning.

In that we lived in "heavenly places" before the foundation of the world, striving for holiness, Joseph Fielding Smith wrote of this pre-mortal life  -

“There must be leaders, presiding officers, and those who are worthy and able to take command. During the ages in which we dwelt in the premortal state we not only developed our various characteristics and showed our worthiness and ability, or the lack of it, but we were also where such progress could be observed. It is reasonable to believe that there was a Church organization there. The heavenly beings were living in a perfectly arranged society. Every person knew his place. Priesthood, without any question, had been conferred and the leaders were chosen to officiate. Ordinances pertaining to that pre-existence were required and the love of God prevailed. Under such conditions it was natural for our Father to discern and choose those who were most worthy and evaluate the talents of each individual. He knew not only what each of us could do, but also what each of us would do when put to the test and when responsibility was given us. Then, when the time came for our habitation on mortal earth, all things were prepared and the servants of the Lord chosen and ordained to their respective missions.” (Smith, The Way to Perfection, pp. 50– 51.)

I think verses 3 - 9 could also be in reference to that which took place before in heavenly places.

It is then that Paul refers to an earthly time period in the last days when all things would be restored and would never be taken away or apostacized from -

"That in the dispensation of the fulness of times he might gather together in one all things in Christ, both which are in heaven, and which are on earth; even in him:
11 In whom also we have obtained an inheritance, being predestinated according to the purpose of him who worketh all things after the counsel of his own will..."  (New Testament | Ephesians 1:10 - 11)

Then speaking of the Savior -

"In whom ye also trusted, after that ye heard the word of truth, the gospel of your salvation: in whom also after that ye believed, ye were sealed with that holy Spirit of promise..." (New Testament | Ephesians 1:13)

The "holy Spirit of promise" is the Holy Ghost who knows all and knows if and individual has satisfied the conditions related to ordinances and covenants.  Preach My Gospe, a Guide to Missionary Service, explains -

The Holy Ghost is also referred to as the Holy Spirit of Promise (see D&C 88:3). To be sealed by the Holy Spirit of Promise means that the Holy Ghost confirms that righteous acts, ordinances, and covenants are acceptable to God. The Holy Spirit of Promise testifies to the Father that the saving ordinances have been performed properly and that the covenants associated with them have been kept. Those who are sealed by the Holy Spirit of Promise receive all that the Father has (see D&C 76:51–60; Ephesians 1:13–14). All covenants and performances must be sealed by the Holy Spirit of Promise if they are to be valid after this life (see D&C 132:7, 18–19, 26). Breaking covenants may remove the sealing.

A great deal of doctrine is taught int he first chapter of Ephesians.