The Bible teaches that God, through His Son, Jesus, the Word of God, specially created all things, including humanity (Gen 1, John 1:3).
Of humanity, God first created a man, named Adam, and then a woman, whom the man named Eve. God then breathed life into them.
They both lived for close to a thousand years, and had numerous children between them, some of whom are also named in scripture (Gen 4:1-2; Gen 4:25; Gen 5:3-4).
From these original people, all of us are descended.
In the New Testament, Paul and Jude confirm for us the accuracy of the records from Moses in the book of Genesis (Rom 5, 1 Tim 2, Jude 1:14).
The Bible also provides genealogical histories of some important individuals, all the way back to Adam and Eve. These people include Noah (Gen 5), Abraham (Gen 11), David (Gen 46, Ruth 4), and Jesus (Mat 1, Luke 3).
Adam and Eve were created in God's image, much like a self-portrait. God also gave them one rule that they needed to obey (Gen 2:17).
They broke that rule (Gen 3:6).
As a result, the world has been plunged into a less-than-perfect state, in which we have all been prisoners. The Bible tells us that even the ground itself was cursed as a result of the behavior of Adam and Eve (Gen 3:17-19).
In this imperfect world, our own selfish nature fights against our conscience at almost every turn. We cannot hope to obey every good and perfect rule of God (Rom 3:23).
Fortunately, God is fully aware of our inability to serve Him perfectly, and He loves us anyway (Rom 5:8).
Even though we disobey Him and make ourselves His enemy, He has decided to do everything necessary to fix this broken relationship that we have with the God who lovingly made us (John 3:16-17).
He has done this through His Son, Jesus.
To save us, Jesus took on the bad results, the penalties, for our bad behavior, even though He Himself, being God in the flesh, had never done any wrong. He did this in the same way that a very rich man might pay off the debt of a poor person (Rom 6:23; Luke 7:41-43).
The Bible teaches that if we confess with our mouths that Jesus Christ is Lord, and believe in our hearts that God raised Him from the dead, we will be saved (Rom 10:9).
If you have never asked Jesus to forgive you for your actions, He says that He is waiting for you with His arms open wide. (Rev 3:20)