It structures chapter 1v3-14:
v3 every spiritual blessing
1) v4-6 chosen and adopted in Christ for the praise of God's glorious grace
2) v7-12 redeemed and predestined in Christ for the praise of his glory
3) v13-14 included and secured in Christ for the praise of his glory
It dominates Paul's prayer in 1v15-23
1) v14-16 thanking God for how the Ephesians are already being to God's glory as a new humanity living in faith and love
2) v17 praying that they would know God and so know how glorious and gracious he is
3) v18-21 praying that they would know the immensity of his grace in their future inheritance and God's mighty power that is sufficient to overcome death and evil
v22-23 all because Christ is over all things so that the church would be for God's glory as it has begun to be through Christ filling it with his power, life and rule just as he is in the process of filling everything with those same things
It lies behind the whole book
1) 2v1-10: This power has been expressed in the transition of believers from death to life that in this age and the age to come God's grace in Christ might be expressed by their living as new creations
2) 2v11-3v13: By this means humanity are united in Christ that God would be glorified for his wisdom even before evil rulers and authorities in the heavenly realms
3) 3v14-21: For this reason Paul prays that by Christ's power believers would know and display Christ's love so that God would be glorified in the Church as it is filled with his fullness
4v1-6v23 then details what this should look like as they put on Christ whether in individual acts or as spiritual armour