Numbers 9:1-3

21st Century King James Version

9 And the Lord spoke unto Moses in the Wilderness of Sinai, in the first month of the second year after they had come out of the land of Egypt, saying,

² “Let the children of Israel also keep the Passover at his appointed season.

³ In the fourteenth day of this month at evening ye shall keep it in his appointed season. According to all the rites of it and according to all the ceremonies thereof shall ye keep it.”