ועתה לכל נה ארה לי את העמ הזהץ Come and curse the nation for me
Balak saw what the Jews had done to the Emorite and Moav become scared and eventually started to hate them because of how big and powerful they had become.
Moav knew he had to come up with a solution, so he sent the elders of Midian to go Bil'am and ask him to curse the jews for him because it was getting too big and feared he would lose control and the Jews would eventually gain power.
Bilam riding his donkey and his two attends wen on the way. G-d becomes mad at them and sent an angel with a sword. Only the donkey saw the angel and stopped, but he hit the donkey who then turned to him and asked him why he hit him.