Luke 1:55
in remembrance of his mercy (even as He promised to our fathers, to Abraham and to his seed,) for ever."
Luke 1:72-73
to display his mercy towards our fathers, and to remember 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: