Numbers 9:4 in the King James Version
And Moses spake unto the children of Israel, that they should keep the passover.
Context
3 On the fourteenth day of this month, at evening, you shall keep it in its appointed season. You shall keep it according to all its statutes and according to all its ordinances.”
4 Moses told the children of Israel that they should keep the Passover.
5 They kept the Passover in the first month, on the fourteenth day of the month at evening, in the wilderness of Sinai. According to all that the LORD commanded Moses, so the children of Israel did.