Question: "What is the significance of the refiner’s fire and launderer’s soap in Malachi 3:2?"
Answer: Malachi 3:2 has been a popular verse in Western society for centuries due to its use in Handel’s famous oratorio Messiah. The verse reads, “But who can endure the day of his coming? Who can stand when he appears? For he will be like a refiner’s fire or a launderer’s soap.” Let’s take a look at the prophet’s similes.
Malachi says that, when the Lord returns, no one will be able to stand before Him. This speaks of the Lord’s holiness and the fact that He will come in judgment. The idea of “standing” before the Lord is associated with “withstanding” or “standing up to”; sinful human flesh will not have the strength, the right, or the desire to resist the Lord in His glory (cf. Psalm 76:7; Revelation 6:17).
The two figures help clarify why no one will be able to stand in the Day of the Lord. First, verse 2 says the Messiah will be like a refiner’s fire, an allusion to the process of purifying metal. A refiner uses a fire to heat metal to a molten state; then he skims the dross that floats to the top. All judgment has been entrusted to the Son (John 5:22). Upon Christ’s return, the intense flame of God’s judgment will purify the earth, removing the dross of sin.
Second, the Messiah will be like a launderer’s soap. This type of soap was bright white and, of course, cleaned clothing. When Christ returns, He will cleanse the world of all impurity. No stain of sin will remain. Jesus’ transfiguration contains a reference to His purity, using language similar to Malachi’s: “He was transfigured before them. His clothes became dazzling white, whiter than anyone in the world could bleach them” (Mark 9:2-3).
The Messiah Jesus will also purify those around Him: “He will sit as a refiner and purifier of silver; he will purify the Levites and refine them like gold and silver. Then the LORD will have men who will bring offerings in righteousness” (Malachi 3:3). Like fire, He will burn away the impurities of the priests. Like soap, He will wash away their uncleanness (Deuteronomy 4:29; Isaiah 1:25; Jeremiah 6:29-30; Ezekiel 22:17-22; Zechariah 3:5). The priests will then be able to offer sacrifices from a pure heart. The sacrifices in the latter days will be similar to those when the temple was first built: “The offerings of Judah and Jerusalem will be acceptable to the LORD, as in days gone by, as in former years” (Malachi 3:4).
The refiner’s fire and launderer’s soap indicate the holiness and burning judgment of the Messiah Jesus when He returns to reign in Jerusalem at His second coming. His brightness and cleanliness will extend to those who serve Him, creating a cleansed temple and purified priesthood. “See, the Sovereign LORD comes with power, and his arm rules for him. See, his reward is with him, and his recompense accompanies him” (Isaiah 40:10).
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