To explain threescore years and ten. A better link would have been https://www.oed.com/dictionary/threescore_adj?tl=true#:~:text=with%20ellipsis%20of%20years%

To explain threescore years and ten. A better link would have been https://www.oed.com/dictionary/threescore_adj?tl=true#:~:text=with%20ellipsis%20of%20years%2C%20in%20reference%20to%20age%3B%20hence%20as,)%20and%20ten%2C%20seventy%20years https://www.oed.com/dictionary/threescore_adj?tl=true#:~:tex....