Exodus 13:10
you shall therefore keep this ordinance in his season from year to year.
ā The Restored Word Bible
Context
8 And you shall shew your son in that day, saying, because of that the Yahuah did unto me when I came forth out of Egypt.
9 And it shall be for a sign unto you upon your hand, and for a memorial between your eyes, that the Yahuah'S law may be in your mouth: for with a strong hand has the Yahuah brought you out of Egypt.
10 you shall therefore keep this ordinance in his season from year to year.
11 And it shall be when the Yahuah shall bring you into the land of the Canaanites, as he sware unto you and to your fathers, and shall give it you,
12 That you shall set apart unto the Yahuah all that openeth the matrix, and every firstling that cometh of a beast which you hast; the males the Yahuah'S.