Paul ends his letter with a prayer and blessing. He mentions the three persons of the Trinity, starting with the grace of the Lord Jesus Christ (see 8:9). This is because we always rely on Christ’s sacrificial love, which reconciles us to God the Father (5:18–21) and unites us through the fellowship of the Holy Spirit with all believers.
The love of God meets our needs and graciously brings us back to his family.
The fellowship of the Holy Spirit refers to our connection with the Spirit, who unites Christians (Ephesians 4:3; Philippians 2:1).