'Known' in the Bible

But to you I say, the rest who are in Thyatira, as many as have not this doctrine, who have not known the depths of Satan, as they say, I do not cast upon you any other burden;

but in the days of the voice of the seventh angel, when he is about to sound the trumpet, the mystery of God also shall be completed, as he has made known the glad tidings to his own bondmen the prophets.