I Chronicles 16:16 Midrash

אֲשֶׁ֤ר כָּרַת֙ אֶת־אַבְרָהָ֔ם וּשְׁבוּעָת֖וֹ לְיִצְחָֽק׃

[The covenant] which He made with Abraham, And His oath unto Isaac;