"Through faith we understand that the worlds were framed by the word of God." Heb. 11:3.
God could call worlds into existence by the word of His mouth, but when sinners had to be cleansed, something more was needed. "God so loved the world, that He gave His only begotten Son." When worlds were to be framed, God had but to speak; when sinners had to be saved, He had to give His Son.
"In this was manifested the love of God toward us, because that God sent His only begotten Son into the world, that we might live through Him. Herein is love, not that we loved God, but that He loved us, and sent His Son to be the propitiation for our sins." 1 John 4:9, 10.