John Calvin on Obadiah 1:20

He afterwards adds, And the migrations of this host of the children of Israel, etc. There is here an obscurity in the words. The Hebrews by Canaan mean the Illyrians as well as Germans, and also the Gauls: for they say, that the migration, which shall be dispersed in Gaul, and in Germany, and in these far regions, shall possess the southern cities. Now by Zarephath they understand Spain. But we know, as we have elsewhere said, that the Jews are very bold in their glosses: for they are not ashamed to trifle and to blend frivolous things; and they assert this as though it were evident from history, and easily found out. Thus they prattle about things unknown to them, and this they do without any reason or discrimination. The Prophet, I doubt not, means here that all those territories, which had been formerly promised to the children of Abraham, would come into their possession when the Lord would send his Christ, not only to restore what had fallen, but also to render the state of the people in every way blessed. The import of the whole then is, that the Jews shall not only recover what they had lost, but what had not hitherto been given them to possess: all this the Lord would bestow on them when Christ came. It follows —

Obadiah 21

21. And saviours shall come up on mount Zion to judge the mount of Esau; and the kingdom shall be the Lord’s.

21. Et ascendent servatores in montem Sion, ad judicandum montem Esau; et erit Jehovae regnum.