Leviticus 23:13-16

¹³And let the meal offering with it be two tenth parts of an ephah of the best meal mixed with oil, an offering made by fire to the Lord for a sweet smell; and the drink offering with it is to be of wine, the fourth part of a hin.

¹⁴And you may take no bread or dry grain or new grain for food till the very day on which you have given the offering for your God: this is a rule for ever through all your generations wherever you are living.

¹⁵And let seven full weeks be numbered from the day after the Sabbath, the day when you give the grain for the wave offering;

¹⁶Let fifty days be numbered, to the day after the seventh Sabbath; then you are to give a new meal offering to the Lord.