Commentaries:
Jamieson, Fausset, and Brown
Sinim—The Arabians and other Asiatics called China Sin, or Tchin; the Chinese had no special name for themselves, but either adopted that of the reigning dynasty or some high-sounding titles. This view of "Sinim" suits the context which requires a people to be meant "from far," and distinct from those "from the north and from the west" [GESENIUS].
Other Jamieson, Fausset, and Brown entries containing Isaiah 49:12:
Isaiah 11:11
DISCLAIMER: Church of the Great God (CGG) provides these resources to aid the individual in studying the Bible. However, it is up to the individual to "prove all things, and hold fast to that which is good" (I Thessalonians 5:21). The content of these resources does not necessarily reflect the views of CGG. They are provided for information purposes only.