'Upward' in the Bible

Then Amaziah assembled [the men of] Judah and set them by {families} under commanders of thousands and commanders of hundreds for all Judah and Benjamin. And he counted them from twenty years old and upward, and found them [to be] three hundred thousand chosen for going out to battle, able [with] spear and shield.

besides their enrollment by genealogy, to males from three years old and upward, to all who came into the house of Yahweh, {as each day required} for their service in their posts according to their working groups.

And the enrollment of the priests [was] according to the house of their fathers, and the Levites, from twenty years old and upward, according to their posts by their working groups.