The same Spirit that empowered the apostolic mission in the First Reading is still strongly present in the Second, as it is the source of wisdom and revelation, leading blessed people like Paul toward knowledge of Jesus Christ himself.
It is important to understand that in this reading, Paul is concerned that people only follow God because they fear him. In Paul’s eyes, people with enlightened hearts should find hope in God, not terror. God should not be a distant being to be feared, but one who is like a parent to us, who calls us and guides us, and gives us an inheritance. God shares the richness of glory with those who believe. By the power of God, Christ too is exalted, and is head of the Church that is his own body. As the body of Christ the Church has an ongoing share in Christ’s own exaltation.
The last passage of the reading connects the Christian community with Christ’s lordship over all things, filling everything in every way. The Church, the body of Christ, continues his mission even to this very day, supported by the presence of the risen Christ.