Joshua 5:10

And the children of Israel encamped in Gilgal, and kept the passover on the fourteenth day of the month at even in the plains of Jericho.

Kept the Passover on the fourteenth day of the month at even - the time fixed by the law (see Exodus 12:18; Leviticus 23:5; Numbers 28:16).

Thus, the people having been circumcised, the national existence was commenced by a solemn act of religious dedication. There is no record of more than one Passover having been observed during the whole sojourn in the wilderness (Numbers 9:1).