Sieve

The sieve appears in scripture only as a figure — the threshing-floor instrument that separates kernel from chaff turned into an image of divine judgment. Three texts carry the figure: Isaiah's sieve of destruction for the nations, Amos's preserving sift of Israel, and Jesus' warning that Satan has demanded to sift Simon as wheat.

The Sieve of Destruction

Isaiah's oracle against Assyria turns the sieve into a winnowing image of judgment: "and his [Speech] is as an overflowing stream, that reaches even to the neck, to sift the nations with the sieve of destruction: and a bridle that causes to err [will be] in the jaws of the peoples" (Isa 30:28). Yahweh's [Speech] is the rising flood; the sieve is the instrument by which the nations are shaken until what is unfit is destroyed.

Sifting the House of Israel

Amos uses the same image with a different valence — judgment that scatters Israel through the nations without losing the true kernel: "For, look, I will command, and I will sift the house of Israel among all the nations, like [grain] is sifted in a sieve, yet the least kernel will not fall on the earth" (Am 9:9). The sift is severe (Israel is shaken among all the nations), but it is also discriminating: the least kernel is preserved, not lost on the ground. The same instrument that destroys in Isaiah also sorts and saves in Amos.

Sifting Simon as Wheat

The figure passes into the gospel scene at the last supper, where Jesus addresses Peter: "Simon, Simon, look, Satan asked to have you⁺, that he might sift you⁺ as wheat" (Lu 22:31). The plural-you (⁺) shows the sift extends past Simon to the disciple group; the threshing-floor image Isaiah and Amos used for Yahweh sifting nations is now Satan's request to sift the disciples. Peter is the named target, but the sieve is shaken under all of them.