'Infantry' in the Bible

And the leaders of all the people, all the tribes of Israel, presented themselves in the assembly of the people of God, four hundred thousand sword-bearing infantry.

When the {Ammonites} saw that they had become odious to David, the {Ammonites} sent [word] and hired Aram Beth-Rehob and Aram-Zobah, twenty thousand infantry; and [they also hired] the king of Maacah, a thousand men, and the men of Tob, twelve thousand men.

These encamped opposite for seven days, and it happened on the seventh day that {the battle began}, and the {Israelites} killed the Arameans, one hundred thousand infantry in one day.

For there was no army left over for Jehoahaz except for fifty horsemen, ten chariots, and ten thousand infantry, for the king of Aram had destroyed them and made them as the dust at threshing.