Charles Ellicott Commentary Romans 9:27

"And Isaiah crieth concerning Israel, If the number of the children of Israel be as the sand of the sea, it is the remnant that shall be saved:" — Romans 9:27 (ASV)

Crieth.—With reference to the impassioned utterance of the prophet.

A remnant.—Rather, the remnant, with an emphasis upon the word. “The remnant, and only the remnant.”

Shall be saved.—In the original, shall return—i.e., as it is explained in the previous verse, “return to God.” St. Paul has followed the LXX. in putting the consequences of such conversion for the conversion itself.