'Wave offerings' in the Bible

You are to make the descendants of Levi stand in the presence of Aaron and his sons. Then you are to wave them as wave offerings to the LORD.

"After this, the descendants of Levi are to come to serve at the appointed place of meeting, after you have purified them and presented them as wave offerings,

The descendants of Levi therefore purified themselves, washed their clothes, and then Aaron presented them as wave offerings to the LORD. Aaron provided atonement for them to purify them.

The LORD spoke to Aaron, "I, behold, I have given you the command of my wave offerings, even all the holy things of the children of Israel; to you have I given them by reason of the anointing, and to your sons, as a portion forever.

And this is thine: the heave-offering of their gift, to all the wave-offerings of the sons of Israel, to thee I have given them, and to thy sons, and to thy daughters with thee, by a statute age-during; every clean one in thy house doth eat it;

All the wave offerings of the holy things, which the children of Israel offer to the LORD, have I given you, and your sons and your daughters with you, as a portion forever: it is a covenant of salt forever before the LORD to you and to your seed with you."