Paul writes this letter to the Ephesian church, addressing both Jewish and Gentile believers. He reminds them of the division that existed before Christ, showcasing that the blood of Jesus serves as the bridge that unites believers, irrespective of their backgrounds.

The themes present in Ephesians 2:13 include:

• Redemption: The concept of being 'brought near' signifies spiritual transformation.
• Unity: Highlights the breaking down of barriers that previously separated Jews and Gentiles.
• Grace: Emphasizes salvation as a gift that is accessed by faith, not by works.

Here are several Bible verses that relate to Ephesians 2:13:

• Romans 5:8: "But God shows his love for us in that while we were still sinners, Christ died for us."
• Colossians 1:21-22: "And you, who once were alienated and hostile in mind, doing evil deeds, he has now reconciled in his body of flesh by his death."
• Isaiah 57:19: "Creating the fruit of the lips. Peace, peace, to the far and to the near," says the LORD, "and I will heal him."
• 2 Corinthians 5:18-19: "All this is from God, who through Christ reconciled us to himself and gave us the ministry of reconciliation."
• Galatians 3:28: "There is neither Jew nor Greek, neither slave nor free, nor is there male and female, for you are all one in Christ Jesus."
• 1 Peter 2:9: "But you are a chosen race, a royal priesthood, a holy nation, a people for his own possession, that you may proclaim the excellencies of him who called you out of darkness into his marvelous light."
• Ephesians 2:19: "So then you are no longer strangers and aliens, but you are fellow citizens with the saints and members of the household of God."

Matthew Henry notes that this verse signifies a major transition for the Ephesians, essentially reaffirming that Christ's sacrifice removes barriers and offers a way for all to access God's grace. He emphasizes the significance of the phrase "brought near," as it relates to divine acceptance.

Albert Barnes elaborates on the notion of being "far off" as representing separation from God due to sin, while Christ’s blood creates a path toward reconciliation, offering hope and unity to believers who were previously outside the covenant.

Adam Clarke discusses the overarching theme of belonging, arguing that through Christ, not only Jews but all nations are invited to partake in the promise of salvation, effectively eliminating all forms of prejudice and division within the faith community.

Utilizing a Bible cross-reference system allows us to identify and grasp the connections between this verse and related scriptures for a deeper understanding. Engaging with these cross-referenced themes enables believers to form a comprehensive view of the doctrine of reconciliation.

How to find cross-references in the Bible involves consulting Bible concordances or cross-reference guides that can pinpoint verses addressing similar themes or teachings, bolstering one's study and interpretation.

Ephesians 2:13 serves as a profound reminder of the inclusivity of the Gospel. It encourages a spirit of unity and love among believers and invites continual exploration of the rich tapestry of connections found within Scripture.