It would be understandable for someone to seek out the most capable and "strong' agent to carry out a task. Rabbenu Bachya teaches us that when choosing an agent he should see no difference in capability one from the next each one is only a messenger from H'shem
pg 425
Nefesh Hachaim
The most important function of the human soul is speech. It sets us apart from all other created beings. The breath one exhales as well as the words themselves is all a manifestation of the Nefesh
Gate 2 Chapter 14 pg97