The Scriptures that make up the Bible are the word of God.
They were written by some 40 different authors by direct inspiration of God.
Paul writes to Timothy:
2 Timothy 3:16 All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness: 17 That the man of God may be perfect, throughly furnished unto all good works.
In the Bible, God explains why he made the earth and his long-term purpose with men and women.
He explains why we die and the provision he has made through his Son, Jesus Christ, to save us from death if we will believe and obey the gospel.
We die, because we are created with free choioce, and, like our first parents, Adam and Eve, we sin (disobey God) and the punishment for all sin is eternal death.
Romans 5:12 Wherefore, as by one man sin entered into the world, and death by sin; and so death passed upon all men, for that all have sinned:
Ezekiel 18:20 The soul that sinneth, it shall die…
Romans 6:23 For the wages of sin is death…
If we believe and obey the gospel preached by Jesus Christ and his apostles, we can have our sins forgiven and be raised from the dead in the future to eternal life in the kingdom of God on earth.
Jesus Christ, because of his perfect obedience and willingness to sacrifice his life to redeem us from sin and death, was raised from the dead and now sits at the right hand of God.
God has appointed a day when he will return to raise and judge the dead and rule this world in righteousness.
Paul speaking at Athens:
Acts 17:26… (God) hath made of one blood all nations of men for to dwell on all the face of the earth, and hath determined the times before appointed, and the bounds of their habitation; 27 That they should seek the Lord, if haply they might feel after him, and find him, though he be not far from every one of us: 28 For in him we live, and move, and have our being; as certain also of your own poets have said, For we are also his offspring. 29 Forasmuch then as we are the offspring of God, we ought not to think that the Godhead is like unto gold, or silver, or stone, graven by art and man’s device. 30 And the times of this ignorance God winked at; but now commandeth all men every where to repent: 31 Because he hath appointed a day, in the which he will judge the world in righteousness by that man whom he hath ordained; whereof he hath given assurance unto all men, in that he hath raised him from the dead.
After his resurrection Jesus commanded his apostles:
Mark 16:15 … Go ye into all the world, and preach the gospel to every creature. 16 He that believeth and is baptized shall be saved; but he that believeth not shall be damned (condemned).
The kingdom of God will begin with a 1000–year reign of Christ over the mortal population of the earth.
Following this, there will be a second resurrection and final judgment.
The faithful (those who believe and obey the gospel) will receive eternal life and the faithless (those who choose not to believe) will be condemned to eternal death.
God will live in and with the faithful forever.
Paul, writing to the Corinthians, explains what is going to happen:
1 Corinthians 15:20 But now is Christ risen from the dead, and become the firstfruits of them that slept. 21 For since by man (Adam) came death, by man came also the resurrection of the dead. 22 For as in Adam all die, even so in Christ shall all be made alive. 23 But every man in his own order: Christ the firstfruits; afterward they that are Christ’s at his coming. 24 Then cometh the end, when he shall have delivered up the kingdom to God, even the Father; when he shall have put down all rule and all authority and power. 25 For he must reign (the 1000-year reign), till he hath put all enemies under his feet. 26 The last enemy that shall be destroyed is death. 27 For he hath put all things under his feet. But when he saith all things are put under him, it is manifest that he is excepted, which did put all things under him. 28 And when all things shall be subdued unto him, then shall the Son also himself be subject unto him that put all things under him, that God may be all in all.
This time is described in the book of Revelation:
Revelation 21:3 And I heard a great voice out of heaven saying, Behold, the tabernacle of God is with men, and he will dwell with them, and they shall be his people, and God himself shall be with them, and be their God. 4 And God shall wipe away all tears from their eyes; and there shall be no more death, neither sorrow, nor crying, neither shall there be any more pain: for the former things are passed away.
This will be the eternal fulfilment of God’s purpose.
Isaiah 45:18 For thus saith the LORD that created the heavens; God himself that formed the earth and made it; he hath established it, he created it not in vain, he formed it to be inhabited: I am the LORD; and there is none else.
Numbers 14:21 But as truly as I live, all the earth shall be filled with the glory of the LORD.
If we don’t read and learn about the Bible we will live and die and perish forever in ignorance of God’s offer of eternal life.
May I suggest that you read:
Your Share in God's Promises: https://www.thisisyourbible.com/library/show/181
I hope this helps.