Commentaries:
Jamieson, Fausset, and Brown
If it be so--VATABLUS translates, "Assuredly." English Version agrees better with the original. The sense is, If it be our lot to be cast into the furnace, our God (quoted from Deuteronomy 6:4) is able to deliver us (a reply to Nebuchadnezzar's challenge, "Who is that God that shall deliver you?"); and He will deliver us (either from death, or in death, 2 Timothy 4:17-18). He will, we trust, literally deliver us, but certainly He will do so spiritually.
Other commentary entries containing this verse:
Jeremiah 43:2
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