"In the Spirit": The Entire Realm that Is In (en) the Spirit
The Greek preposition "in" (en) gives us the key to understanding more of what it means to be "in the Spirit." The Greek preposition "in" means "being or remaining within, with the primary idea of rest and continuance; it has regard to place and space or to the realm and sphere of action." The word "in" (en) also denotes inclusion in the whole of something. Thus, many times in the New Testament, as in Ephesians 1:3-14, the Holy Spirit uses the Greek preposition "in" to describe "All" that is included in the whole of God's purpose in Christ. Therefore, in the Word of God, we find that the important statement "in the Spirit" speaks of the Entire Realm that is "in the Spirit."
Therefore, the Realm that is "in the Spirit" is the Realm that is surrounded, empowered, and controlled by the Presence and Power of - out of - the Holy Spirit Himself.
Therefore, the Realm that is "in the Spirit" is the Realm that the Holy Spirit Himself permeates, pervades, infuses, immerses, floods, and fills all things with His Presence and Power.
Therefore, the Realm that is "in the Spirit" is the Realm in which the Holy Spirit is energizing, working, and bringing about all that God has purposed In Christ - the Eternal Realm in which Christ Is All, and In All.
So, it is in Ephesians 2:19-22 that we find the ultimate and consummate meaning of the phrase "in the Spirit." And that is because it is "in the Spirit", in the Eternal Realm of the Holy Spirit, that we are built upon our Sure Foundation, the Chief Cornerstone being Christ Jesus Himself. It is "in the Spirit," in the Eternal Realm of the Holy Spirit, that each and every "living stone" is being fitly-framed-together into a holy temple n The Lord. It is "in the Spirit," in the Eternal Realm of the Holy Spirit, that in Christ we are being built together into the Eternal Habitation of God. Beloved, when this living sanctuary In The Lord is finished, living sanctuary that is made up of all the redeemed, it will be the manifestation forever of ALL-THAT-GOD-IS. It will eternally be the manifestation of the Eternal Glory and Presence of God the Father, God the Son, God the Holy Spirit.
(continued with # 6 ("Be Filled In the Spirit")