Exodus 38:8
And he made the laver of brass, and the foot of it of brass, of the lookingglasses of the women assembling, which assembled at the door of the tabernacle of the congregation.
Cross-reference
Exodus 30:18-21 commands the bronze basin—here it is constructed from mirrors, fulfilling that instruction.
Exodus 40:7 commands the basin be placed between tent and altar—the basin made here is then set up there.
Exodus 40:30-32 describes priests washing at the basin—this basin from mirrors is used for that purpose.
Exodus 31:9 lists the bronze basin and its stand among tabernacle furnishings, directly referencing the same object as Exodus 38:8.
Exodus 35:16 includes the basin and its stand in the tabernacle inventory, directly linking to the basin made from mirrors in Exodus 38:8.
1 Samuel 2:22 references the same 'women who served at the entrance,' providing background to the basin's donor-group.
Isaiah 3:23 lists mirrors as women's luxury items, contrasting with Exodus 38:8 where mirrors are donated for holy use. Mirrors for vanity vs. service.
1 Kings 7:23-26 describes the bronze sea in Solomon's temple—a larger version of the tabernacle basin here.
1 Kings 7:38 describes ten bronze basins for the temple, echoing the original bronze basin for washing in the tabernacle.