Mainly because He has an eternal existence that is purely energetic in essence.
Within His substance of being lies the the eternal concentration of His infinite, uncreated, and inexhaustible power.
God isn’t just an Entity who possesses all power; He is all power just as much He is love.
As I’ve been stating through other posts about the energetic nature of God, His glory being the substance that makes Him whom He is as the Almighty, absolute, supreme, and sovereign God of all realms of existence is nothing more than His infinite and divine reactions (fission and fusion) of His eternal, uncreated, and inexhaustible substance of being generating power and energy.
His glory is His divine vibrations and radiations, His waves of divine energy and power, His infinite furnace of consuming fire, smoke, His blazing rays of light, and His explosive bolt of lightnings of His being emanating out of Him.
This makes God to be a glorious, majestic, living, vibrant, radiant, explosive, energetic, electrifying, powerful, fiery, luminous, and thunderous Entity releasing power and energy at an infinite rate.
His glory being His burning and shining greatness is the sum up of His energetic nature, such as His eternal existence, supremacy, sovereignty, preeminence, transcendence, independence, omnipresence, omniscience, omnipotence, and so on.
The main way that God releases the infinite concentration of power of His being mentioned earlier to fulfill His will is through His Word.
Within His divine power lies His energy, vibration, and frequency that create the atmosphere for something to come forth.
When He speaks, there are three main elements that come forth from His energetic nature that release a chain of events that will produce a divine reaction and result wherever the Word is spoken.
His breath, voice, and the spoken Word (Psalm 33:6; Psalm 29:3-9; Hebrews 11:3).
1) His breath unleashes His creative energy and power.
2) His voice generates sound waves that set the ton.
3) His spoken Word carries His command as to what He needs done.