Leviticus 23:20

23:20 and the priest is to wave them – the two lambs – along with the bread of the first fruits, as a wave offering before the Lord; they will be holy to the Lord for the priest.

Leviticus 23:16-17

23:16 You must count fifty days – until the day after the seventh Sabbath – and then you must present a new grain offering to the Lord. 23:17 From the places where you live you must bring two loaves of bread for a wave offering; they must be made from two tenths of an ephah of fine wheat flour, baked with yeast, as first fruits to the Lord.