Numbers 8:11
And Aaron shall offer the Levites before the Lord for an offering of the children of Israel, that they may execute the service of the Lord.
Cross-reference
Numbers 8:13 repeats the command to present Levites as a wave offering, reinforcing the ritual action.
Numbers 8:15 ties the wave offering to permission to serve; after this ritual they enter ministry.
Numbers 8:16 explains that Levites are given for the firstborn; this grounds the wave offering in substitution.
Numbers 8:21 records the fulfillment of this wave offering; Aaron actually does what is commanded here.
Numbers 1:49-53 separates Levites for tabernacle duty; the wave offering here formalizes that separation and consecration.
Numbers 3:5-43 appoints Levites as substitutes for firstborn; the wave offering symbolizes their transfer to God's service.
Numbers 3:7 specifies Levites' guard duty; the wave offering commissions them for that specific service.
Numbers 6:20 also describes a wave offering (the priest waves parts of the Nazirite's sacrifice), using the same ritual term as Levites presented as a wave offering.
Exodus 29:24 has Aaron and his sons wave parts of the ram as a wave offering during their ordination, paralleling the Levites' wave offering consecration.
Leviticus 8:27 also uses wave offering in ordination; both rituals dedicate servants by waving before the Lord.
Leviticus 8:29 shows Moses waving the breast as his portion; here Levites are waved, linking their dedication to priestly ordination.
Leviticus 7:30 describes the wave offering of the breast; here Levites are offered as a wave offering, extending sacrificial imagery to persons.