וְ֭עַתָּה מְלָכִ֣ים הַשְׂכִּ֑ילוּ הִ֝וָּסְר֗וּ שֹׁ֣פְטֵי אָֽרֶץ׃
Kaya ngayon, kayong mga hari, magpakatalino kayo; tumanggap kayo ng aral, kayong mga hukom ng lupa.
Rashi
And now, [you] kings, be wise The Jewish prophets are merciful people. They reprove the heathens to turn away from their evil, for the Holy One, blessed be He, extends His hand to the wicked and to the righteous.
Radak
Now therefore, O ye kings: – David said to them, to the kings who came to fight him, “O kings!”
Ibn Ezra
And now, O kings (וְ֭עַתָּה מְלָכִ֣ים - ve-attah melakhim): These are the "kings of the earth" [mentioned in verse 2].