Thou shalt keep the feast of weeks with the first-fruits of the corn of thy wheat harvest and the feast when the time of the year returneth that all things are laid in.
And the feast of the harvest of the first-fruits of thy work, whatsoever thou hast sown in the field. The feast also in the end of the year, when thou hast gathered in all thy corn out of the field.
That every day an offering might be made on it according to the ordinance of Moses: in the sabbaths: and on the new moons: and on the festival days three times a year, that is to say, in the feast of unleavened bread, and in the feast of weeks, and in the feast of tabernacles.
Three times in a year shall all thy males appear before the Lord thy God in the place which he shall choose: in the feast of unleavened bread, in the feast of weeks, and in the feast of tabernacles. No one shall appear with his hands empty before the Lord.
And thou shalt celebrate the festival of weeks to the Lord thy God: a voluntary oblation of thy hand, which thou shalt offer according to the blessing of the Lord thy God.