Just as the olive tree needs extensive roots to survive a period of drought, the students need to fortify their spiritual roots in order to endure indifference, opposition, or other trials that they may encounter in their foreign service. ​ — Matthew 13: 21; Colossians 2: 6, 7.
Sebagaimana pohon zaitun membutuhkan akar yang dalam supaya bisa bertahan melewati musim kering, para siswa perlu memperkuat akar rohani mereka supaya bisa bertekun menghadapi sikap masa bodoh, tentangan, atau pencobaan lain yang mungkin mereka hadapi dalam dinas mereka di negeri asing. ​ — Matius 13: 21; Kolose 2: ​ 6, 7.