Numbers 22:36

And when Balak heard that Balaam was come, he went out to meet him unto a city of Moab, which is in the border of Arnon, which is in the utmost coast.

When Balaam arrived, Balak went out to meet him at the border city of Moab by the Arnon and then conducted him from one point to another. The removals from place to place were made in the vain hope that Balaam might be induced to turn the blessing of Israel into a curse. The repeated changes of location were persistent pressure to reverse a blessing that God had already given. That pressure failed no less completely than the later efforts of mediators to sway Luther toward compromise. Human applause and the fear of man are alike powerless to shake steadfastness when one is sustained by divine power.