John Calvin on Deuteronomy 33:12

12. And of Benjamin he said. It is probable that Moses alludes to the inheritance which fell to the lot of the children of Benjamin; for the part of Jerusalem in which the temple stood was contained in it. Since, therefore, God assigned them a dwelling-place, in which He in a manner protected them, and cherished them beneath His wings, they are not without reason called His beloved, for this was no ordinary pledge of His love To “dwell upon God,” A. V., “by God.” and “between his shoulders,” is equivalent to reposing upon Him; a similitude taken from fathers who carry their children whilst yet they are small and tender. Others extract a different meaning, viz., that God would dwell upon the shoulders of Benjamin; but this is very unnatural. It is, nevertheless, the exposition of the great majority of commentators, who suppose that by shoulders are figuratively meant mountains, or coasts.