Ephesians 3:4 mentions the same 'mystery of Christ' Paul now explains in the marriage analogy.

Psalm 45:9-17 depicts a royal wedding — a typological picture of Christ and the church, which Paul calls a mystery in Ephesians.

Isaiah 54:5 declares God as husband to Israel — the same marriage metaphor Paul applies to Christ and the church as a mystery.

Isaiah 62:4 says Israel will be called 'Married' — God's covenant as marriage, echoed in Paul's mystery of Christ and the church.

Isaiah 62:5 compares God's joy over Israel to a bridegroom over his bride — Paul uses the same metaphor for Christ and the church.

John 3:29 calls Jesus the bridegroom with the church as his bride — the same image Paul calls a mystery in Ephesians.

2 Corinthians 11:2 says Paul betrothed the church to Christ as a pure bride — directly parallel to the mystery in Ephesians.

1 Timothy 3:16 calls the incarnation the 'mystery of godliness' — closely related to the mystery of Christ and the church in Ephesians 5:32.

Revelation 19:7 announces the marriage of the Lamb and his bride — the ultimate fulfillment of the mystery Paul describes.

Revelation 19:8 describes the bride's fine linen as righteous deeds — expanding the marriage imagery Paul calls a mystery.

Revelation 21:2 depicts the church as a bride prepared for Christ, directly echoing Paul's mystery of Christ and the church.