John Chrysostom — as excerpted in the Catena Aurea on Matthew 8:18-22

“Because Christ not only healed the body, but purified the soul also, He desired to shew forth true wisdom, not only by curing diseases, but by doing nothing with ostentation; and therefore it is said, Now when Jesus saw great multitudes about him, he commanded his disciples to cross over to the other side. This He did at once teaching us to be lowly, softening the ill-will of the Jews, and teaching us to do nothing with ostentation.”