Hebrews 6:13

For in making a promise to Abraham God swore by himself (since he could swear by none greater),

Luke 1:54-55

He has succoured his servant Israel, mindful of his mercy

Treasury of Scripture Knowledge

Summary

Remember Abraham, Isaac, and Israel, thy servants, to whom thou swarest by thine own self, and saidst unto them, I will multiply your seed as the stars of heaven, and all this land that I have spoken of will I give unto your seed, and they shall inherit it for ever.

To whom

Bible References

To whom

Hebrews 6:13
For in making a promise to Abraham God swore by himself (since he could swear by none greater),