God’s words, whether spoken by Jesus or written in Scripture, are indeed full of power, and it is noteworthy how many and varied are the physical analogies used to characterize and emphasize its power.
For example, consider Jeremiah 23:29. "Is not my word like as a fire? saith the LORD; and like a hammer that breaketh the rock in pieces?" The fire analogy is also stressed in Jeremiah 20:9, when the prophet became weary of the negative reaction against his preaching: "Then I said, I will not . . . speak any more in his name. But his word was in mine heart as a burning fire shut up in my bones, and I was weary with forbearing, and I could not stay."
God’s Word is also called a sharp sword wielded by the Holy Spirit. As part of the Christian’s spiritual armor, we are exhorted to take "the sword of the Spirit, which is the word of God" (Ephesians 6:17). "For the word of God is quick, and powerful, and sharper than any twoedged sword, piercing even to the dividing asunder of soul and spirit, and of the joints and marrow, and is a discerner of the thoughts and intents of the heart" (Hebrews 4:12).
Even more significantly, perhaps, it is compared to light, for light energy is really the most basic of all forms of energy, or power. "Thy word is a lamp unto my feet, and a light to my path." "The entrance of thy words giveth light" (Psalm 119:105, 130). The first spoken words of Christ our Creator were "Let there be light" (Genesis 1:3).
But no earthly form of power can compare to the power in the words of the One who is Himself the living Word of God, the Lord Jesus Christ, for He is actually "upholding all things by the word of his power" (Hebrews 1:3). HMM