Are there scriptures that definitely show that some will never be saved?
2 Thess. 1:9, RS: "They shall suffer the punishment of eternal destruction and exclusion from the presence of the Lord and from the glory of his might."
Rev. 21:8, RS: "As for the cowardly, the faithless, the polluted, as for murderers, fornicators, sorcerers, idolaters, and all liars, their lot shall be in the lake that burns with fire and sulphur, which is the second death."
Matt. 7:13, 14, RS: "Enter by the narrow gate; for the gate is wide and the way is easy, that leads to destruction, and those who enter by it are many. For the gate is narrow and the way is hard, that leads to life, and those who find it are few."