'Number' in the Bible

And Joshua said to them, "Cross [over] before the ark of Yahweh your God to the middle of the Jordan, and each one of you lift up a stone on your shoulder, according to the number of the tribes of the {Israelites},

Thus the {Israelites} did as Joshua commanded. They took twelve stones from the middle of the Jordan as Yahweh told Joshua, according to the number of the tribes of the {Israelites}, and they carried them over with them to {the camp}, and they put them there.