The days of old, i.e. the history and events of ancient days or former ages, and thou wilt find that I had a respect unto thee, not only in Abraham's time, but long before it. Compare Jeremiah 2:20.
Related Commentaries of Deuteronomy 32:7
Deuteronomy 32:7
7 Remember the days of old, consider the years of manya generations: ask thy father, and he will shew thee; thy elders, and they will tell thee.