What does the Bible say about seeking personal power?

In John 6, we see the multitude seeking Jesus not for His miracles, but for earthly sustenance. Jesus rebukes their motives, stating, 'You seek me not because you saw the miracles, but because you did eat the loaves and were filled.' This highlights a common pitfall in human nature: the desire to use Jesus for personal gain rather than recognizing Him as the source of eternal life. True power and sustenance come only from the Lord, and those who chase after earthly rewards deceive themselves, as all things eternal are obtained solely through Christ and not through personal effort.