'Known' in the Bible

Be it known unto the king, that the Jews which came up from thee to us are come unto Jerusalem, building the rebellious and the bad city, and have set up the walls thereof, and joined the foundations.

Be it known now unto the king, that, if this city be builded, and the walls set up again, then will they not pay toll, tribute, and custom, and so thou shalt endamage the revenue of the kings.

Be it known unto the king, that we went into the province of Judea, to the house of the great God, which is builded with great stones, and timber is laid in the walls, and this work goeth fast on, and prospereth in their hands.