During his earthly ministry, Jesus proclaimed God’s Kingdom as the only hope for distressed humanity, and he trained his disciples to continue this preaching work. ​ — Matthew 4: 17; 10: 5 - 7; 28: 19, 20.
Maise teenistuse ajal kuulutas Jeesus, et Jumala Kuningriik on kannatava inimsoo ainus lootus, ning ta õpetas oma jüngritele, kuidas seda kuulutustööd jätkata.