For when God made a promise to Abraham, since he had no one greater by whom to swear, he swore by himself, saying, “Surely I will bless you and multiply you.”
English Standard Version (ESV)
Hebrews 6:13-14
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What's easy to miss is that God's oath isn't just a promise, it's God essentially pawning His own character and existence. He swears by Himself because there's nothing higher or more certain to guarantee His Word, showing the absolute reliability of His promises to those who wait with faith.
For when God made a promise to Abraham, since he had no one greater by whom to swear, he swore by himself, saying, “Surely I will bless you and multiply you.”
English Standard Version (ESV)
The author is encouraging the readers to persevere in their faith, addressing their potential discouragement over the delayed return of Christ. To illustrate this, he points to Abraham's example of patient endurance, highlighting how God confirmed His promises to him with an oath, because there was no one greater than Himself by whom to swear. This divine oath serves as a supreme assurance that God's promises are certain and will be fulfilled, even if fulfillment isn't immediately visible.
Before God swore, He made a promise. What was this foundational promise, and why was Abraham the recipient?
The writer of Hebrews points us back to Abraham as the ultimate example of faith and patient endurance. The promise God made to Abraham wasn't just about land or descendants; it was the bedrock of God's redemptive plan.
A Seed of Hope
This promise, stretching across multiple accounts in Genesis (like chapters 12, 15, and 17), was multifaceted. It included a vast lineage, a unique covenant relationship, and most importantly, the assurance that through Abraham's line, all nations would be blessed. This points directly to the coming of Christ, the ultimate fulfillment of God's promise.
Abraham's Trust
Abraham's story shows us that receiving God's promises often requires waiting, especially when circumstances seem impossible. God's oath wasn't just a formality; it was a divine confirmation to anchor Abraham's faith when humanly speaking, the promise seemed out of reach.
Why would God, the highest being, need to swear an oath? What does it mean that He swore 'by himself'?
The Bible doesn't shy away from the fact that God swore an oath to Abraham. This wasn't because God is unreliable, but because we are. In a world where oaths are broken and trust is fragile, God stooped to our level to provide the highest possible assurance.
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The Ultimate Guarantee
When God made His promise to Abraham, He could swear by no one greater. There is no being above Him. Therefore, to give Abraham (and by extension, us) the absolute certainty of His promise, God swore by His own divine being, His very existence. It's like God saying, 'My promise is as certain as I AM.'
Pledging His Deity
This oath is a profound act of condescension. God essentially pledged His own infinite, unchangeable nature to guarantee the fulfillment of His word. It underscores the absolute reliability of His character and His unwavering commitment to His covenant people. It’s a display of His immense grace, ensuring that our faith is grounded not in our ability to hold on, but in His unbreakable commitment.
Understand the original words
omnuō · Greek Verb
To invoke God as a witness to the truthfulness of a statement. Swearing by oneself indicates that there is no higher authority than God, making the promise absolute and immutable.
eulogeō · Greek Verb
The conferral of divine favor, prosperity, and spiritual well-being upon an individual or people according to God's sovereign will.
The writer of Hebrews points to God's oath to Abraham as the ultimate divine guarantee, showing that God's promises are absolutely trustworthy and meant to inspire unwavering faith and perseverance in His people, even when fulfillment is delayed.
c. 2000 BC
God promises Abraham descendants
God first promises Abraham a numerous offspring, land, and that through him all nations would be blessed (Genesis 12). This covenant relationship is foundational.
c. 1950 BC
God confirms promise to Abraham
After Abraham questioned how he would know he would inherit the land, God makes a covenant with him, confirming the promise and establishing a sign (Genesis 15). Later, God changes Abram's name to Abraham, signifying a more profound covenant and promising him a son (Genesis 17).
c. 1925 BC— this verse
God swears by Himself to Abraham
In response to Abraham's faith and obedience, especially during the trial of offering Isaac, God swears an oath by Himself, promising Abraham immense blessings and numerous descendants. This serves as the ultimate assurance of God's commitment.
This passage directly contains the oath God swore to Abraham, which the author of Hebrews is referencing, highlighting the immense weight and assurance God placed on His promise.
Isaiah 45:23This verse echoes the concept of God swearing by Himself, emphasizing His absolute sovereignty and the certainty that every knee shall bow and every tongue confess to Him.
Romans 4:13This passage connects Abraham's inheritance of the world not through law, but through the righteousness of faith, aligning with the context of God's promise and oath to Abraham as a foundation of faith.
Hebrews 11:17-19This section in Hebrews recounts Abraham's willingness to offer Isaac, directly linking it to his faith in God's promise and God's subsequent oath, reinforcing Abraham as the ultimate example of faith and patience.
ellicottHebrews 6:13: "For when God made promise to Abraham, because he could swear by no greater, he sware by himself,"
(13) The connection seems to be this: “You, like them, have promises—promises to which God has given all possible certainty; you, like them, can attain the fulfilment only through faith and patient waiting.” For when God made promise.—It is better to follow the words literally, For when to Abraham God had made promise. Abraham is chosen for special mention as the most illustrious exa…
pooleHebrews 6:13: "For when God made promise to Abraham, because he could swear by no greater, he sware by himself,"
For when God made promise to Abraham : for is a confirmation by instance, that faith and patience had made some to inherit the promises, as Abraham, and what was influencing of him in the exercising them, viz. God’s promise and oath. God Almighty, who was as able to perform as to make a promise, Genesis 17:1 , having made a promise to Abraham the father of believers, that he wonld co…
What's easy to miss is that God's oath isn't just a promise, it's God essentially pawning His own character and existence. He swears by Himself because there's nothing higher or more certain to guarantee His Word, showing the absolute reliability of His promises to those who wait with faith.
The author is encouraging the readers to persevere in their faith, addressing their potential discouragement over the delayed return of Christ. To illustrate this, he points to Abraham's example of patient endurance, highlighting how God confirmed His promises to him with an oath, because there was no one greater than Himself by whom to swear. This divine oath serves as a supreme assurance that God's promises are certain and will be fulfilled, even if fulfillment isn't immediately visible.
The author is encouraging the readers to persevere in their faith, addressing their potential discouragement over the delayed return of Christ. To illustrate this, he points to Abraham's example of patient endurance, highlighting how God confirmed His promises to him with an oath, because there was no one greater than Himself by whom to swear. This divine oath serves as a supreme assurance that God's promises are certain and will be fulfilled, even if fulfillment isn't immediately visible.
"For when God made a promise to Abraham, since he had no one greater by whom to swear, he swore by himself, saying, “Surely I will bless you and multiply you.”" — What's easy to miss is that God's oath isn't just a promise, it's God essentially pawning His own character and existence. He swears by Himself because there's nothing higher or more certain to guara…
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Last reviewed October 2026