'Kings' in the Bible

and before governors and kings ye shall be brought for my sake, for a testimony to them and to the nations.

But what went ye out to see? -- a man clothed in soft garments? lo, those wearing the soft things are in the kings' houses.

And when he came into the house, Jesus anticipated him, saying, 'What thinkest thou, Simon? the kings of the earth -- from whom do they receive custom or poll-tax? from their sons or from the strangers?'