For example, He that is with me is not me. Sonship is, in truth, the great bulwark of the Deity of Christ. From eternity the Son of God sustained to the Father a relationship involving identity of nature. If He is not eternal, our election is not eternal, for we are elected in Him. Our eternal preservation depends on Eternal Sonship.
Nothing can survive to eternity but that which came from eternity.
Our choice is between inferiority of nature and inferiority of relation. Christians believe that there is subordination in the Trinity, but strongly deny inferiority of nature in the Godhead. To call God Father and deny that He begets is as absurd as to call Him a sun and deny that He enlightens.