2 Kings 3:13

What have I to do with thee? An expression equivalent to a command to be gone. Cf. Mark 5:7; Luke 8:28; John 2:4.

the prophets of thy father It would be no easy task, however willing Jehoram might be, to put down at once the worship of Baal. We know indeed that this was not done. Only the special outward mark, -the pillar of Baal" (verse 2), which indicated the royal attachment to the idolatrous rites, and stood perhaps in the king's own ground, was put down. Jehoram would be forced to trust to the power of opinion to banish the worship completely. It is so much more easy to encourage wrong than to get rid of it. Hence to Elisha the acts of Jehoram would seem very fainthearted, and he would be held for a sharer in the ways of Ahab and Jezebel.

Nay i.e. Send me not away thus. And in his next sentence he admits that the orderer of all these events is Jehovah, and confesses by implication that to Him only can they look for aid.