How do we know God's kingdom will be completed?

The completion of God's kingdom is firmly rooted in Scripture, where God's promises consistently affirm the triumph of His reign. Zechariah 4:6 emphasizes that God's work is accomplished, not by human strength, but by His Spirit, guaranteeing the fulfillment of His plans. Furthermore, Jesus Christ laid the foundation for this kingdom and will surely finish it, illustrating that every obstacle, including sin, has been dealt with through His atoning sacrifice. Ultimately, the consummation of God's kingdom will occur as prophesied throughout Scripture, culminating in the gathering of all His people into eternal glory.