'Kings' in the Bible

And you will be brought before both governors and kings because of me, for a witness to them and to the Gentiles.

But what did you go out to see? A man dressed in soft clothing? Behold, those who wear soft clothing are in the houses of kings.

He said, "Yes." And [when he] came into the house, Jesus spoke to him first, saying, "What do you think, Simon? From whom do the kings of the earth collect tolls or taxes--from their own sons, or from foreigners?"