Isaiah 31:9: The Lord's fire is in Zion, &c

With Jesus to reign Whoever aspire,
Again and again He proves them by fire;
Cast into the furnace Their Saviour they praise;
The fire does but burnish And brighten their
grace.

Then let us abide Through Jesus's name,
Till seven times tried, And purged by the flame,
Made like our Creator We gloriously shine.
And bear the new nature The image Divine.