Supporting Sola Scriptura and everlasting torment is impossible. Immortalists who claim to rely on Scripture alone must either denounce their indefensible doctrine, or admit that tradition weighs heavily in their decision. If the Bible is our only authority, conditional immortality is our only conclusion. Other viewpoints rely on questionable sources. When we examine the historical evidence outside the Bible, we see most scholars believed in everlasting torment.
Tradition is on their side.
Nevertheless, their case rests on the assumption that the soul is eternal, which contradicts Scripture. During the first century, most people believed the earth was flat and the sun revolved around the earth. Similarly, honest examination of Scripture refutes the assumption that the soul is eternal. Our beliefs reflect our loyalty. This was the first lie in the Bible.