Romans 4:21
A focused desk for reading, commentary, cross-references, original language notes, and your own observations.
Romans 4:21
21 And being fully persuaded that, what he had promised, he was able also to perform.
Chapter Context
Romans 4 is a theological epistle chapter in the New Testament that explores themes of grace, faith, prayer. Written during Paul's third missionary journey (c. 57 CE), this chapter should be understood within its historical context: Christians in Rome navigated tensions between Jewish and Gentile believers under imperial watch.
The chapter can be divided into several sections:
- Verses 1-5: Introduction and setting the context
- Verses 6-12: Development of key themes
- Verses 13-20: Central message and teachings
- Verses 21-25: Conclusion and application
This chapter is significant because it contributes to the biblical metanarrative of redemption. When studying this passage, it's important to consider both its immediate context within Romans and its broader place in the scriptural canon.
Verse Study
Romans 4:21
21 And being fully persuaded that, what he had promised, he was able also to perform.
Analysis
And being fully persuaded that, what he had promised, he was able also to perform. Paul summarizes Abraham's faith: plērophorētheis (πληροφορηθείς, "being fully assured/convinced"). The verb compounds plēros (πλήρος, "full") with phoreō (φορέω, "to carry/bear")—faith that is fully carried through, complete conviction. The content of this assurance has two components:
- ho epēggeltai (ὃ ἐπήγγελται, "what He has promised")—God's word stands
- dunatos estin kai poiēsai (δυνατός ἐστιν καὶ ποιῆσαι, "He is able also to do")—God's power matches His promise.
This is the anatomy of justifying faith: full persuasion that God is both truthful (He has promised) and powerful (He is able to perform).
Abraham believed God could do what humanly was impossible—create life from death. This parallels Christian faith: God raised Christ from the dead (v. 24-25), which was equally impossible by natural means. Justifying faith trusts God to do what He has promised (justify the ungodly, v. 5) because He is able (through Christ's atoning death and resurrection). Faith's object, not its intensity, saves.
Historical Context
The connection between promise and power would resonate with Paul's Roman readers familiar with patron-client relationships. A patron's word was only as good as his ability to deliver on it. Paul presents God as the ultimate Patron whose promises are absolutely certain because His power is unlimited. This contrasts with human patrons who might promise much but lack the power or will to follow through.
Reflection
- What is the relationship between God's promise and God's power, and why must faith embrace both?
- How does Abraham's 'full persuasion' differ from mere intellectual assent or wishful thinking?
- What has God promised you that seems impossible, and do you believe He is able to perform it?
Cross-References
- Parallel theme: Romans 8:38, Genesis 18:14, Psalms 115:3, Jeremiah 32:17, 32:27, Matthew 19:26