Physical death is not permanent:

This statement raises an obvious question with regard to the common belief system of persons going to heaven or hell immediately after death. A fundamental biblical teaching affirms that there will be resurrections of the dead at various key points in the future. One resurrection will be directly into Spirit form, the others will be physical.

[1 Corinthians 15:40-44] … we are to receive Spirit bodies in the first resurrection.
[1 Corinthians 15:49] … we shall bear the image of the heavenly man.
[1 Corinthians 15:52-54] … we shall be changed into an immortal form.
[1 Thessalonians 4:15] … the dead in Christ will rise at the Last Trump.

The soul is not immortal:

In concert with the heaven or hell teachings, the underlying supporting belief involves the soul being represented as immortal and ever conscious. In part, the belief originates with a misunderstanding of what a soul is. The soul, by biblical definition, is that component of our existence which gives us animal life form. It is the human spirit which provides us intellect and consciousness. The human spirit is what is taken into God’s hands at death. It is our spirit that contains our character, which will be re-implanted in our future Spirit bodies, allowing us in that form to be the same person we had been.

[Ezekiel 18:4 & 20] The soul that sinnith, it shall die.
[Ecclesiastes 3:19] As dies the beast, so dies the man. They die a common death.
[1 Timothy 6:16] God only has immortality (but He can give it to His own elect.)
[1 Corinthians 15:53] This mortal must put on immortality.

There is no after-death consciousness:

Scriptures are clear that the soul does not remain in any state of consciousness after death. While scriptures are explicit regarding death’s true condition, many religions ‘teachers’ disregard their clarity.

[Psalm 146:4] When a man dies, that very day his thoughts perish.
[Psalm 6:5] “in death … no remembrance of thee: in the grave who shall give thee thanks?”
[Eccl. 9:10] “… no work, … nor knowledge, nor wisdom, in the grave, where you go.”
[1 Thess. 4:14] Even those “dead in Christ” are in a “sleep-like” state awaiting a reawakening.

The Second Death is the final end of the wicked:

Someone being assigned to Eternal Death before the Final Judgment at the end would be a miscarriage of justice if the individual never was called by God and never had any opportunity to become converted. Understanding the Plan of God requires answers to the enigma of there being so many who obviously never had a reasonable opportunity, either through ignorance, through premature death such as with infants, or never having heard the true Gospel. The parable of the seed being sown in Matthew 13 illustrates various response situations that can result.

[Revelation 20:14] … death and hell will be consumed after the Final Sentencing of the wicked.
[Revelation 21:8] Lake of Fire is the Second Death – all vestiges of the sinful are consumed.
[Revelation 14:18] The angel having power over fire “reaps” the wicked for destruction.
[John 5:28-29] The final resurrection will be the time of sentencing: Life or the Second Death.

Accomplished in the Lake of Fire:

A greatly misunderstood situation regards the final destiny of those proven to be wicked. Unlike in the common belief system, their destiny is to an unconscious extinction, not eternal torment. The Second Death is a state from which there is no further possibility of a resurrection. Those sentenced to death will experience a quick end in what is likened to a Lake of Fire. This end is accomplished in a brief time period, after the Final Sentencing event after the millennium and after living in the final opportunity period known as the Last Great Day (also known as the Great White Throne judgment period – A day when evidence is accumulated to permit a just sentencing.)

[Revelation 20:14] The Lake of Fire consumes all cast therein. (even death and the grave!)
[Revelation 21:8] Incorrigibly Wicked are assigned to this fate.
[Matthew 10:28] Christ cautioned the unbelieving of their date with this destiny.

This is an Excerpt from the book: The Message to God’s Called-Out Ones by the Christian Church of God Grand Junction Colorado. You can read the entire book at the link above.