God apparently patterned the order of the resurrection after the patterns of the harvests. The Rapture of he church can be illustrated by the barley harvest because of the winnowing by the wind, the softness of the shell, and its being in the first harvest season. Those believers who come out of the tribulation are illustrated by the wheat harvest because of the stiff upright neck and the crushing by the tribulum. The taking away of unbelievers for impending judgment at the end of the Tribulation in the battle of Armageddon is illustrated by the fruit of the harvest and the winepress. And the ushering of the believers out of the Tribulation is illustrated by the gleanings because they are not harvested or resurrected but they live on in the Millenium in their non-resurrected bodies. (p84 Unlocking The Secrets Of The Feasts, Michael Norten)
As Paul wrote, I would not have you to be ignorant ...