call ... run - God must call, before man can, or will, run (Son 1:4; Joh 6:44). Not merely come, but run eagerly.
thou knowest not - now as thy people (so in Mat 7:23).
nation ... nations - gradation; from Israel, one nation, the Gospel spread to many nations, and will do so more fully on Israel’s conversion.
knew not thee - (Isa 52:15; Eph 2:11, Eph 2:12).
because of ... thy God ... glorified thee - (Isa 60:5, Isa 60:9; Zec 8:23); where similar language is directed to Israel, because of the identification of Israel with Messiah, who is the ideal Israel (Mat 2:15; compare with Hos 11:1; see Act 3:13).