The REMNANT of God's chosen people:
Zechariah 13:8-9 1599 Geneva Bible (GNV)
8 And in all the land, saith the Lord, two parts therein shall be cut off, and die: but the third shall be left therein.
9 And I will bring that third part through the fire, and will fine them as the silver is fined, and will try them as gold is tried: they shall call on my Name, and I will hear them: I will say, It is my people, and they shall say, The Lord* is my God.
*Lord=YHWH=I AM that I AM and 'I AM' is God and JESUS means 'I AM SALVATION'.