[An excerpt:  What Is the Power Behind Those Powerful Words? by Steve Ham] "Thus says God the LORD, Who created the heavens and stretched them out, Who spread forth the earth and that which comes from it, Who gives breath to the people on it, And spirit to those who walk on it. (Isaiah 42:5)

“Thus says the Lord.” Whenever you read those powerful words from the Bible, always beware of the words that follow. The Bible constantly talks from an authoritative position of power. When God speaks through His Word, we must listen (Proverbs 8:6-11). But what is so serious about us listening? Well, apart from anything else, we must consider who is speaking. He is the One whose very breath created all things and gave life and breath to all that lives. Consider the vast expanse of the heavens with countless stars and galaxies. God spoke them into existence on the fourth day of creation and His Word simply states, “and he created the stars also.”

The Bible claims to have the most powerful message that man can know: Galatians 1:3-5 states that through Jesus Christ we can be saved out of this present evil world. This means that the message must come from someone who is truly powerful to the extent that He conquers all of this world’s evil. He is able to define the beginning and end of this world, and He is big enough not to be limited to this world that we need to be saved from. The basic concept here is that we are impotent in our situation of sin and unable to save ourselves. We rely on the Omnipotent, and if there is not one with complete and ultimate power, we are without hope and the message of the gospel is folly.

Yet, God is that powerful Creator. He has power to create, power to judge, and power to save. This is demonstrated not only in His works of creation but also in His dealings with people and in the person and works of Jesus Christ. Jesus’ authoritative power was demonstrated by one lady touching His garment and receiving healing. He healed the blind, the lame, and the sick. He turned water into wine, the wind and waves obeyed Him, the demons obeyed Him, and He forgave sin as only God can. The Bible claims that Christ is the power unto salvation; it is the power from an omnipotent God that is displayed in the vastness of His creation and in the history of this world as recorded in His Word." Full text: http://www.answersingenesis.org/articles/2010/05/14/power-words

Biblical Authority Pt IV: What Is the Power Behind Those Powerful Words?