12. Jephthah sent messengers. Before engaging in actual warfare with the Ammonites, Jephthah announced himself as the new leader of the Gileadites by exchanging messages with the king of the enemy invaders. He spoke in the name of Israel, as an acknowledged prince. In his message he launched a formal protest against the Ammonite invasion.
What hast thou? That is, “What business have we with each other?” What reason do you have for invading our country? Although Jephthah was a mighty man of valor, he did not delight in war, but preferred to avoid it by peaceable negotiation. He wanted to settle the dispute on the basis of justice. If the Ammonites could convince him that Israel had done them wrong, he was ready to restore their rights. If not, he was ready to maintain the cause of Israel even if it meant war.