Most evangelicals attribute Ephesians 5:1–2 to the Apostle Paul. Brief summary and reasons from an evangelical perspective:

Key verse (ESV)
– Ephesians 5:1–2: “Therefore be imitators of God, as beloved children. And walk in love, as Christ loved us and gave himself up for us, a fragrant offering and sacrifice to God.”

Who wrote it
– Paul of Tarsus — the missionary-apostle who led much of the early Gentile church planting. The letter itself begins “Paul, an apostle of Christ Jesus…” (Eph. 1:1), and early church testimony (e.g., Irenaeus, Clement) and church use consistently attribute the letter to him.

Why evangelicals accept Pauline authorship
– Internal claim of authorship (the salutation).
– Doctrinal and thematic continuity with other Pauline letters (themes like union with Christ, grace, adoption, ethical outworking).
– Early and widespread patristic attestation.
– Historical fit: Ephesians is traditionally placed among the “prison epistles” (along with Philippians, Colossians, Philemon), written while Paul was under house arrest (commonly dated around AD 60–62).

Context and purpose
– Audience: believers in Ephesus (or a broader circular audience in Asia Minor); many recipients were Gentile Christians.
– Occasion: instruction in what Christian identity (union with Christ and adoption as children of God) means for daily life — unity, holiness, and practical relationships.
– Structure: theological exposition (chapters 1–3) leads to practical exhortation (chapters 4–6). 5:1–2 is a hinge from theology into ethics.

Interpretation of Ephesians 5:1–2 (evangelical emphases)
– “Imitators of God”: ethical call grounded in believers’ new identity as God’s children (adoption). Christians are to pattern their lives after God’s character.
– “Walk in love”: the primary moral expression is love (agapē), not merely feeling but self-giving action modeled on Christ.
– Christ’s example: Jesus’ sacrificial giving (gave himself up) is the pattern for Christian love — costly, redemptive, and pleasing to God (“fragrant offering”).
– The passage links doctrine and practice: union with Christ and the Spirit’s power make this imitation possible; love is both the motive and the method of holy living.

Pastoral application (typical evangelical takeaways)
– Identity precedes behavior: because we are adopted children and united to Christ, we are called to reflect God’s character.
– Love is concrete and sacrificial — it shapes marriage, family, church life, and witness.
– The Spirit empowers believers to live this out; it’s not merely moralism but sanctification rooted in grace.

If you want, I can:
– Give a short exegesis verse-by-verse,
– Compare translations,
– Outline how this passage has been applied in evangelical preaching and discipleship.