'Custom' in the Bible

Be it known now to the king that if this city is built, and the walls finished, they will not pay tribute, custom, or toll, and in the end it will be hurtful to the kings.

There have been mighty kings also over Jerusalem, who have ruled over all [the country] beyond the River; and tribute, custom, and toll, was paid to them.

Also we inform you, that touching any of the priests and Levites, the singers, porters, Nethinim, or servants of this house of God, it shall not be lawful to impose tribute, custom, or toll, on them.