“The word of God is living and active and sharper than any two-edged sword, and piercing as far as the division of soul and spirit, of both joints and marrow, and able to judge the thoughts and intentions of the heart” (Hebrews 4:12).
In the 1800’s, Charles Spurgeon was planning to preach at The Crystal Palace in London. He went to the place a day or two before the event to test out the acoustics (they didn’t have any amplification back then). So, he cried out in a loud voice, the words of John 1:29, “Behold the Lamb of God which taketh away the sin of the world.”
Unknown to Spurgeon, there was a worker who was working in one of the galleries. He heard the message, was convicted of his sin, and believed on Christ. Such is an example of the power of the word of God.