Is this the teaching of the church today, that God the Father was once a man like we are? Hinckley: "I don’t know that we teach it. I don’t know that we emphasize it. I haven’t heard it discussed for a long time in public discourse. I don’t know. I don’t know all the circumstances under which that statement was made. I understand the philosophical background behind it. But I don’t know a lot about it and I don’t know that others know a lot about it." Gordon B Hinckley interview transcript for TIME Magazine article Kingdom Come of August 1997, in context compared to the printed article. | wasmormon.org
Is this the teaching of the church today, that God the Father was once a man like we are? Hinckley: "I don’t know that we teach it. I don’t know that we emphasize it. I haven’t heard it discussed for a long time in public discourse. I don’t know. I don’t know all the circumstances under which that statement was made. I understand the philosophical background behind it. But I don’t know a lot about it and I don’t know that others know a lot about it." Gordon B Hinckley interview transcript for TIME Magazine article Kingdom Come of August 1997, in context compared to the printed article.

As Man Now Is, God Once Was; As Now God Is, Man May Be – Lorenzo Snow

Lorenzo Snow coined a couplet that famously explains a complex doctrine of Mormon theology which is closely tied to the idea of eternal progression. It also gets Mormon theology in deep water with most other Christian denominations. It challenges (or changes) the nature of God and our relationship with him as mankind. It proclaims that …

On whether his church still holds that God the Father was once a man, he sounded uncertain, "I don't know that we teach it. I don't know that we emphasize it... I understand the philosophical background behind it, but I don't know a lot about it, and I don't think others know a lot about it." - President Gordon B. Hinckley Interview TIME Magazine: Mormons, Inc. August 1997, Kingdom Come Article | wasmormon.org
On whether his church still holds that God the Father was once a man, he sounded uncertain, "I don't know that we teach it. I don't know that we emphasize it... I understand the philosophical background behind it, but I don't know a lot about it, and I don't think others know a lot about it." - President Gordon B. Hinckley Interview TIME Magazine: Mormons, Inc. August 1997, Kingdom Come Article
At first, Hinckley seemed to qualify the idea that men could become gods, suggesting that "it's of course an ideal. It's a hope for a wishful thing," but later affirmed that "yes, of course they can." (He added that women could too, "as companions to their husbands. They can't conceive a king without a queen.") On whether his church still holds that God the Father was once a man, he sounded uncertain, "I don't know that we teach it. I don't know that we emphasize it... I understand the philosophical background behind it, but I don't know a lot about it, and I don't think others know a lot about it." - President Gordon B. Hinckley Interview TIME Magazine: Mormons, Inc. August 1997, Kingdom Come Article | wasmormon.org
At first, Hinckley seemed to qualify the idea that men could become gods, suggesting that "it's of course an ideal. It's a hope for a wishful thing," but later affirmed that "yes, of course they can." (He added that women could too, "as companions to their husbands. They can't conceive a king without a queen.") On whether his church still holds that God the Father was once a man, he sounded uncertain, "I don't know that we teach it. I don't know that we emphasize it... I understand the philosophical background behind it, but I don't know a lot about it, and I don't think others know a lot about it." - President Gordon B. Hinckley Interview TIME Magazine: Mormons, Inc. August 1997, Kingdom Come Article
Mormons believe that God was once a man? Hinckley: "I wouldn't say that. There was a little couplet coined, "As man is, God once was. As God is, man may become." Now that's more of a couplet than anything else. That gets into some pretty deep theology that we don't know very much about." - LDS Church President Gordon B. Hinckley in 1997 Interview with SFGate | wasmormon.org
Mormons believe that God was once a man? "I wouldn't say that. There was a little couplet coined, "As man is, God once was. As God is, man may become." Now that's more of a couplet than anything else. That gets into some pretty deep theology that we don't know very much about." - LDS Church President Gordon B. Hinckley in 1997 Interview with SFGate