These are those who with nashim (women) are not tameh (unclean, defiled), bochrim ki betullim they are, for these are the ones following the SEH (Lamb, SHEMOT 12:3; YESHAYAH 53:7 Moshiach) wherever he goes. These chasidim had the Geulah price paid for their redemption [VAYIKRA 25:50, 51; YESHAYAH 61:2], the ones having been purchased from Bnei Adam as the bikkurim (firstfruits) to Hashem and to the SEH (Lamb, YESHAYAH 53:7). [YIRMEYAH 2:3]