And I will turn my hand upon thee, and purely purge away thy dross, and take away all thy tin:
I will turn my hand - not in wrath, but in grace (Zechariah 13:7).
Upon thee - as Isaiah 1:26-27 show; contrasted with the enemies, of whom He will avenge Himself (Isaiah 1:24).
Purely - literally, as alkali purifies х kabor (H1252)]. Purely - literally, as alkali purifies х kabor (H1252)].
Purge away thy dross ... tin - not thy sins, but the sinful persons (Jeremiah 6:29); "enemies" (Isaiah 1:24); degenerate princes (note, Isaiah 1:22), intermingled with the elect "remnant" of grace.
And take away all thy tin - Hebrew, bªdiyl (H913); here the alloy of lead, tin, etc., separated by smelting from the silver. The pious Dr. Bedell took his motto from this.