Yet, as Christ Himself noted, "the harvest is plentiful, but the labourers are few," He designated an additional seventy, sending them ahead into all the towns and cities of Judea to serve as His heralds and proclaim His teachings.
As He sent them forth, He granted them the grace of the Holy Spirit and empowered them to perform miracles, countering any doubts about their authority as true apostles, unlike those in earlier days who falsely prophesied without His instruction, as noted in Scripture. God, through the voice of Jeremiah, similarly declared, "I sent not the prophets, and they fled: I spake not unto them, and they prophesied," and at another time, "The prophets prophesy lies in my name: I sent them not, neither spake unto them, nor commanded them." Thus, to prevent skepticism towards those commissioned by Christ, He endowed them with authority over unclean spirits and the capability to perform signs. The divine miracles that accompanied their preaching silenced any accusations or deceptive words aimed against them; accusations were nullified as they were deemed unjust, and instead, any opposition was a struggle against God.
No one can perform miracles unless empowered by God. Thus, the Spirit's grace affirmed that the apostles did not act independently or speak on their own accord; rather, they were ordained as servants of His message. The authority they bore to cast out evil and vanquish Satan was not for self-glorification, but to uplift Christ through their actions, enabling those they taught to believe in Him as both God and the natural Son of God. They were bestowed with such immense glory and power that they could also grant others the authority to tread upon Satan. Yet, as recorded, filled with such remarkable favor, "they returned, rejoicing, and saying, Lord, even the demons are subject unto us through thy name." They recognized the power of Him who had honored them and were in awe of His greatness.
Their joy seemed to stem not merely from their role as messengers or from their apostolic recognition, but primarily from the miracles they performed. It would have been more fitting for them to understand that the miracles were bestowed not for personal admiration but to validate their preaching, as the Holy Spirit confirmed through divine signs. Truly, it would have been preferable if their joy had centered around those whom they had drawn to faith, creating a genuine cause for celebration, much like the wise Paul who cherished those brought to faith through his ministry, referring to them as "My joy and my crown." Instead, they rejoiced solely in their power over Satan.