These are those who with nashim are not tameh  unclean, defiled , bochrim ki betullim they are, for these are the ones following  the Seh  Lamb, Yeshayah 53:7  wherever He goes. These chasidim had the [kapparah] price paid for their Geulah [Vayikra 25:50-51] redemption, the ones having been purchased from bnei Adam as the bikkurim to Hashem and to the Seh  Lamb, Yeshayah  53:7 . [Yirmeyah 2:3]