Numbers 9:4-6

Revised Geneva Translation

⁴ Then Moses spoke to the children of Israel, to celebrate the Passover.

⁵ And they kept the Passover on the fourteenth day of the first month at twilight, in the wilderness of Sinai. According to all that the LORD had Commanded Moses, so did the children of Israel.

⁶ And certain men were defiled by a dead man, so that they might not keep the Passover on the same day. And they came before Moses and before Aaron on the same day.