Leviticus [Pertaining to Levites] 23:15-17

¹⁵“‘You shall count from the next day after the Sabbath, from the day that you brought the sheaf of the wave offering; seven Sabbaths shall be completed:

¹⁶even to the next day after the seventh Sabbath ·To cease· you shall count fifty days; and you shall offer a new meal offering to Adonai .

¹⁷You shall bring out of your habitations two loaves of bread for a wave offering made of one tenth of an ephah two omers; 4.6 q; 4.4 L of fine flour. They shall be baked with yeast, for first fruits to Adonai .