The Festival of Weeks

15 “ ‘From the day after the Sabbath, the day you brought the sheaf of the wave offering, count off seven full weeks.
References for Leviticus 23:15
      16 Count off fifty days up to the day after the seventh Sabbath, and then present an offering of new grain to the LORD.
      References for Leviticus 23:16
      17 From wherever you live, bring two loaves made of two-tenths of an ephah of the finest flour, baked with yeast, as a wave offering of firstfruits to the LORD.
      References for Leviticus 23:17
      18 Present with this bread seven male lambs, each a year old and without defect, one young bull and two rams. They will be a burnt offering to the LORD, together with their grain offerings and drink offerings—a food offering, an aroma pleasing to the LORD.
      References for Leviticus 23:18
      19 Then sacrifice one male goat for a sin offeringa and two lambs, each a year old, for a fellowship offering.
      References for Leviticus 23:19
        • • 23:19 - Or "purification offering"
          20 The priest is to wave the two lambs before the LORD as a wave offering, together with the bread of the firstfruits. They are a sacred offering to the LORD for the priest.
          References for Leviticus 23:20
          21 On that same day you are to proclaim a sacred assembly and do no regular work. This is to be a lasting ordinance for the generations to come, wherever you live.
          References for Leviticus 23:21