Numbers 9:4-6

New King James Version

⁴ So Moses told the children of Israel that they should keep the Passover. ⁵ And ^(A)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 commanded Moses, so the children of Israel did.

⁶ Now there were certain men who were ^(B)defiled by a human corpse, so that they could not keep the Passover on that day; ^(C)and they came before Moses and Aaron that day.