Leviticus 23:11

And he shall wave the sheaf before the Lord, to be accepted for you: on the morrow after the sabbath the priest shall wave it.

Cross-reference

Leviticus 23:15 Historical context

Leviticus 23:15 commands counting seven weeks from the wave sheaf, directly linking it to Pentecost.

Leviticus 9:21 describes Aaron waving the breast and thigh as a wave offering, showing the same ritual action of waving before the Lord.

Exodus 29:24 includes waving in the ordination ceremony, echoing the wave sheaf ritual.

Numbers 6:20 describes the Nazirite's wave offering, another instance of this same ritual act.