Hebrews 6:13

For when God gave his promise to Abraham, because he could swear by no greater, he sware by himself, saying,

Hebrews 3:18

and who were they, who, he sware, should not enter into his rest, but those that did not believe? so we see that they could not enter in,

Hebrews 6:18

that by two immutable things in which it was impossible for God to deceive us, we, who have no other refuge to fly to, but to maintain our present hopes,

Treasury of Scripture Knowledge

Summary

Therefore hear ye the word of the LORD, all Judah that dwell in the land of Egypt; Behold, I have sworn by my great name, saith the LORD, that my name shall no more be named in the mouth of any man of Judah in all the land of Egypt, saying, The Lord GOD liveth.

I have sworn

Bible References

I have sworn

Hebrews 3:18
and who were they, who, he sware, should not enter into his rest, but those that did not believe? so we see that they could not enter in,
Hebrews 6:13
For when God gave his promise to Abraham, because he could swear by no greater, he sware by himself, saying,