Luke 1:73

the oath which he swore to our father Abraham:

Hebrews 6:13-14

For when God made a promise to Abraham, since he had no one greater by whom to swear, he swore by himself,

Romans 4:13-14

The promise to Abraham and his descendants, that he would be heir of the world, was not through the law but through the righteousness of faith.

Treasury of Scripture Knowledge did not add