What does the Bible say about the power of Jesus' word?

In Hebrews 1:3, it is stated that Jesus Christ upholds all things by the word of His power, indicating His divine authority and control over creation and salvation. This demonstrates His deity as the God-man, who is both fully God and fully human. His power is not limited; He can command nature, heal the sick, and raise the dead, as seen throughout the Gospels. Indeed, every promise made in Scripture is upheld by His word, showing that He is completely trustworthy and sovereign over all aspects of life and salvation.