Luke 1:55
which he promised to our forefathers, to Abraham, and to his posterity for ever."
Luke 1:72-73
to show regard to our forefathers, in performing his holy covenant,
Treasury of Scripture Knowledge
Summary
Wherefore it shall come to pass, if ye hearken to these judgments, and keep, and do them, that the LORD thy God shall keep unto thee the covenant and the mercy which he sware unto thy fathers: