At that time, it is stated of the Shekhinah: (Deut. 25:9)... and she will remove his shoe – the shoe of the blessed Holy One, to fulfil with it:... (Ex. 3:5) remove your shoe... and He is united with His Shekhinah, Who is called ‘removal’∞ḥalitzah, and He is (Deut. 25:10)... the ‘removed∞ḥalutz of the shoe’.
And then they will not need to be joined by way of levirate marriage, for ever, of which it is stated: (Ruth 4:7) And this used to be the manner in Israel... etc... and a man would remove his shoe and give it to his fellow... What is: his shoe (na)’alo? It is an appellation (kinui), that of which it is stated: (Song. 4:12) A locked (na)’ul garden...