The Lord says more in John 3 than could have been made known in Old Testament times. He speaks of eternal life. He had come from heaven to make God known and to show what suits Him and His presence, and He was the manifestation of eternal life. Eternal life was Himself; He was it, a life heavenly in source and character, of which heaven is the proper and suited sphere, but which is the enjoyed portion now of all who believe in the Son. The Son has been uplifted that life might be bestowed upon all who trust His name.
W. W. Fereday