Some Evangelicals, such as J. Oliver Buswell and the late Walter Martin, have been abandoning the Trinitarian faith as defined by the First Council of Nicaea (A.D. 325). Their abandonment of orthodox Trinitarianism consists in denying the eternal Sonship of Christ, the doctrine that the second person of the Trinity was the Son of God from all eternity. Instead, they claim that the second person of the Trinity only became the Son of God at his incarnation. Apart from the incarnation he was still God, but not the Son, just the second Person.
Christ’s divinity is shown over and over again in the New Testament. For example, in John 5:18 we are told that Jesus’ opponents sought to kill him because he "called God his Father, making himself equal with God."
~ Father Captier, Dominican superior of the College of Arcueil, to his 12 companions (Dominican priests and laymen), imprisoned by the Paris Commune for being prominent members of the Church, as they were being ordered into the street one by one. There they were murdered and defiled by the mob on May 25, 1871, just hours before the commune stronghold fell to the regular army that was advancing from Versailles.