Exodus 28:4 lists the turban among the priestly garments, providing the context that this item is part of the holy attire.

In Exodus 28:28, a blue cord similarly fastens the breastpiece to the ephod — the same method and material for securing sacred garments.

Exodus 29:6 describes the ritual of setting the turban on Aaron and putting the holy crown on it — the actual application of this instruction.

Exodus 39:30 records the craftsmen making the gold plate with the inscription — the exact fulfillment of this command.

Exodus 39:31 explicitly states they tied it with a blue cord as commanded — a direct report of this very action.

Leviticus 8:9 shows Moses placing the golden plate on the turban during Aaron's consecration — the fulfillment of this command.

Numbers 15:38 commands a blue cord on every Israelite's garment tassels — the same blue cord motif extended to the people.