Paul's suffering is interpreted through Christ's lordship and gospel mission.
Ephesians 3:1-6
1 For this cause I, Paul, am the prisoner of Christ Jesus on behalf of you Gentiles,
God has revealed that Gentiles are co-heirs, co-members, and co-sharers in the promise in Christ through the gospel.
2 if it is so that you have heard of the administration of that grace of God which was given me toward you,
3 how that by revelation the mystery was made known to me, as I wrote before in few words,
4 by which, when you read, you can perceive my understanding in the mystery of Christ,
5 which in other generations was not made known to the children of men, as it has now been revealed to his holy apostles and prophets in the Spirit,
6 that the Gentiles are fellow heirs and fellow members of the body, and fellow partakers of his promise in Christ Jesus through the Good News,
Paul's calling is a gift of grace empowering him to proclaim the boundless riches of Christ and make God's plan plain.
Ephesians 3:7-13
7 of which I was made a servant according to the gift of that grace of God which was given me according to the working of his power.
8 To me, the very least of all saints, was this grace given, to preach to the Gentiles the unsearchable riches of Christ,
9 and to make all men see what is the administration of the mystery which for ages has been hidden in God, who created all things through Jesus Christ,
Through the church, God's manifold wisdom is made known to the rulers and authorities in the heavenly realms.
10 to the intent that now through the assembly the manifold wisdom of God might be made known to the principalities and the powers in the heavenly places,
11 according to the eternal purpose which he accomplished in Christ Jesus our Lord.
12 In him we have boldness and access in confidence through our faith in him.
13 Therefore I ask that you may not lose heart at my troubles for you, which are your glory.
Paul prays that believers would be strengthened by the Spirit, indwelt by Christ, rooted in love, and filled with God's fullness.
Ephesians 3:14-21
14 For this cause, I bow my knees to the Father of our Lord Jesus Christ,
15 from whom every family in heaven and on earth is named,
16 that he would grant you, according to the riches of his glory, that you may be strengthened with power through his Spirit in the inner person,
17 that Christ may dwell in your hearts through faith, to the end that you, being rooted and grounded in love,
18 may be strengthened to comprehend with all the saints what is the width and length and height and depth,
19 and to know Christ’s love which surpasses knowledge, that you may be filled with all the fullness of God.
God is praised as the one able to do immeasurably more than all his people ask or imagine, to his glory in the church and in Christ.
20 Now to him who is able to do exceedingly abundantly above all that we ask or think, according to the power that works in us,
21 to him be the glory in the assembly and in Christ Jesus to all generations forever and ever. Amen.