Hello @maripgyunglum and thank you for your post. I would like to answer question two and then question one.
If humans wrote the Bible according to our likeness, apart from the Holy Spirit’s guidance and direction (2 Peter 1.20-21, Proverbs 30.5, Psalm 119), then it would be entirely different from what we have now. I would like to point out some of the ways.
We would be God over all, king of everything, and ruler of the universe. We know from the Genesis 3 account regarding the sin of Adam and Eve and the Isaiah 14 narrative about satan, that each of those mentioned attempted to do just that and things did not work out well for them. These same attempts still don’t work out well today. Isaiah 63.10, 1 John 3.8.
Our “bible” would not have anything in it regarding our stupidity, weaknesses, sins, shortcomings or failures. It would be all about our ability, our greatness, wisdom and power. We know that apart from Christ, nothing good lives within. Romans 7.18, John 15.5, Psalm 16.2. When we read the Word of God we see His beauty and perfection, but our lust, selfishness, greed, idolatry, hatred, and the list goes on and on.
It would be a deceitful book because the heart is deceitful above all things. Jeremiah 17.9 It would be a heartless, graceless, thankless, hateful manifesto (2 Timothy 3.3) because that is who we invariably end up becoming apart from the intervention of the Savior.
Sometimes when I read the Bible, I do not like it one bit because it reads me, too, and exposes who I am apart from Christ. Sometimes it scares me because its verbal accuracy and precision feels like the finger of God on my condition. Other times it brings comfort and peace. All the time it is living, active, working and relevant. Hebrews 4.12
Now for the first question and your comments
In 1 Corinthians 15.3, 4 the apostle Paul tells us what the true Gospel (good news) of Jesus Christ is and how we can be saved to spend eternity with God.
For what I received I passed on to you as of first importance: that Christ died for our sins according to the Scriptures, that he was buried, that he was raised on the third day according to the Scriptures.
When we believe that Jesus died for our sins on the cross and ask Him to forgive us for all the wrong things we have done against Him, He will forgive us and come to live in us through His Holy Spirit. The reason Jesus had to die is because, in order for us to be cleansed from our sin the shedding of blood was required. Leviticus 17.11, Hebrews 9.22. It required a perfect, sinless sacrifice. Only Jesus met those requirements. John 1.29
The link below will explain it in more detail.
If anything you have read brings up more questions or causes any confusion, please speak up and let us know. There are many people on this site (myself included) who would be more than happy to help. Thank you again for your post.