Exodus 23:14-17

Leeser(i) 14 Three times shalt thou keep a feast unto me in the year. 15 The feast of unleavened bread shalt thou keep; seven days shalt thou eat unleavened bread, as I commanded thee, in the time appointed of the month of Abib; for in it thou camest out from Egypt: and none shall appear before me empty. 16 And the feast of harvest, of the first-fruits of thy labors, which thou hast sown in thy field: and the feast of ingathering, at the conclusion of the year, when thou gatherest in thy labors out of the field. 17 Three times in the year shall all thy males appear before the Lord, the Eternal.
Reformed Dating