Alma asks for two things in his prayer. He asks for comfort through the trials, and success in their labors. Notice that he does not ask that the labors be easy. He does not expect that there will be no trials. Alma fully expects that the mission to the Zoramites will be difficult. We know from his later blessing to Shiblon that he had been imprisoned and stoned (Alma 38:4). This certainly would not be an easy mission. Nevertheless, what Alma asks is not that the way be made easy, but that they be comforted in their trials.