(And there came a man) He is described as being a man because he had the courage to take a different route, a shorter route than those who were sent after Musa, so he reached Musa first and said to him: "O Musa,
(Verily, the chiefs are taking counsel together about you.)," meaning, `they are consulting with one another about you.'
(to kill you, so escape.) means, from this land.
(Truly, I am one of the good advisers to you.)