As I explained previously to convicted1, the English word "dead" is the koine Greek word "nekros." Nekros means, "one that has breathed his last. Lifeless. Deceased. Departed." It describes a dead body. A corpse.
All words have more than one meaning. The Bible does not use this meaning for the word "dead." The word "dead" in the Bible means "separated." The sooner you see that, the sooner you will understand the various usages of the word "dead." Only the context in which the word "dead" is used can give you the actual meaning--which is usually true with all words.
1. Physical death:
James 2:26 For as the body without the spirit is dead,
--When the spirit separates from the body that is death. We don't pray to the dead. We don't pray to Mary and the "saints." They are dead. We don't go into the cemeteries and pray to those that are there. They are dead. Their spirits are separated from their bodies and are either in heaven or hell.
2. Spiritual death:
Ephesians 2:1 And you
hath he quickened, who were dead in trespasses and sins;
--The spirit of man is always "alive" but not always "responsive." In its unsaved state it is separated from God by sin, and it needs to be reconciled to God. Death is not lifelessness. It is not as a corpse. That is false teaching. If it were true, then you wouldn't be alive. God breathed into you the breath of life (your spirit). That act completed Adam and Eve as "persons."
2 Corinthians 5:19 To wit, that God was in Christ,
reconciling the world unto himself, not imputing their trespasses unto them; and hath committed unto us the word of reconciliation.
20 Now then we are ambassadors for Christ, as though God did beseech
you by us: we pray
you in Christ's stead,
be ye reconciled to God.
The work of Christ--reconciling the world to himself.
The command of Christ--Be reconciled to God.
Why? We are separated from God by sin. Death is separation. They were separated from God. The Holy Spirit reconciled them to God. That is where the life came from. Death is separation.
3. Eternal death:
Romans 6:23 For the wages of sin
is death; but the gift of God
is eternal life through Jesus Christ our Lord.
Eternal life, spoken of in the second half of this verse is compared to death in the first half of the verse, and therefore--eternal death, or separation for all eternity. This death is separation from God for all eternity in a place called hell or eventually the Lake of Fire. Those who reject God will eternally die and be separated from God eternally. Death is separation.
4. The Second Death.
This is the final sentence on all the unsaved. It is in Rev.20:11-15.
Revelation 20:13 And the sea gave up the dead which were in it; and death and hell delivered up the dead which were in them: and they were judged every man according to their works.
14 And death and hell were cast into the lake of fire. This is the second death.
--Separation from God for all eternity. It is plain that death is separation from God.
A sinner is spiritually dead. The sinner still has a nature, but that nature is in bondage to sin. Sin is synonymous with death and darkness. The spiritually dead nature is incapable of any righteous act. It is incapable of belief - faith. Paul writes:
A person is saved by faith. That is the only way that one can be saved. Your statement is false primarily because your definitions are false. Your entire premise to start with is false. False premises lead to false conclusions.
[14]*The natural person does not accept the things of the Spirit of God, for they are folly to him, and he is not able to understand them because they are spiritually discerned.
(1 Corinthians 2:14 ESV)
The natural person in 1 Cor. 2:14 is the same person who is spiritually dead. This person not only does not accept the things of the Spirit of God, he is incapable of doing so, because those things are spiritually discerned. That is what it means to be spiritually dead.
The verse is speaking of one who tries on his own to understand spiritual things. An example is the Ethiopian Eunuch. He was reading the Book of Isaiah. When Philip asked if he understood what he was reading, he replied: "How can I except some man show me"?
Then Philip began at the same place and preached unto him Jesus.
Note that the eunuch was still unsaved, but he could understand Philip.
Why could he understand Philip if he was dead and spiritually discerned?
Why would one man make a difference?
Does going to church make a difference? Listening to the preacher?
He could understand, while he was yet dead. Dead does not mean lifelessness as you assert.
Faith comes by hearing and hearing by the Word of God. As he heard the Word of God explained to him by Philip he came to understand it. After he understood it his spirit was able to respond in faith, his faith. By faith he trusted Christ. What did Philip say?
If THOU believest thou mayest.
The eunuch said: "I BELIEVE that Christ is the Son of God."
It wasn't God's faith; it was his own.