Hebrews 6:17

So when God wanted to make the unchanging nature of His purpose very clear to the heirs of the promise, He guaranteed it with an oath.

Berean Standard Bible
Other translations

King James Version

Where in God, willing more abundantly to shew unto the heirs of promise the immutability of his counsel, confirmed it by an oath:

World English Bible

In this way God, being determined to show more abundantly to the heirs of the promise the immutability of his counsel, interposed with an oath,

American Standard Version

Wherein God, being minded to show more abundantly unto the heirs of the promise the immutability of his counsel, interposed with an oath;

Geneva Bible 1599

So God, willing more aboundantly to shew vnto the heires of promise the stablenes of his counsell, bound himselfe by an othe,

Darby Translation

Wherein God, willing to shew more abundantly to the heirs of the promise the unchangeableness of his purpose, intervened by an oath,

Young's Literal Translation

in which God, more abundantly willing to shew to the heirs of the promise the immutability of his counsel, did interpose by an oath,

Bible in Basic English

So that when it was God's desire to make it specially clear to those who by his word were to have the heritage, that his purpose was fixed, he made it more certain with an oath;

In context

16Men swear by someone greater than themselves, and their oath serves as a confirmation to end all argument.

18Thus by two unchangeable things in which it is impossible for God to lie, we who have fled to take hold of the hope set before us may be strongly encouraged.

Read Hebrews 6