Revelation 2:11 He that has an ear, let him hear what the Spirit says to the churches;
He that overcomes shall not be hurt of the second death.
6] Blessed and holy is he who has a part in the first resurrection: on him the second death has no power, but they shall be priests of God and of Christ, and shall reign with him a thousand years.
14] And death and hell were cast into the lake of fire. This is the second death.
But the fearful, and unbelieving, and the abominable, and murderers, and whoremongers, and sorcerers, and idolaters, and all liars, shall have their part in the lake which burns with fire and brimstone: which is the second death.
1 Corinthians 6:9-11
Do you not know that the unrighteous will not inherit the kingdom of God? Do not be deceived. Neither fornicators, nor idolaters, nor adulterers, nor homosexuals, nor sodomites, nor thieves, nor covetous, nor drunkards, nor revilers, nor extortioners will inherit the kingdom of God.
And such were some of you. But you were washed, but you were sanctified, but you were justified in the name of the Lord Jesus and by the Spirit of our God.