That God is the creator and ruler of the universe. The trinity of the Father, Son, and Holy Spirit are co-equal.
"In the beginning, God created the heavens and the earth." (Gen. 1:1 NIV)
"Then God said, Let us make mankind in our image, in our likeness, so that they may rule over the fish in the sea and the birds in the sky, over the livestock and all the wild animals, and over all the creatures that move along the ground. So God created mankind in his own image, in the image of God he created them: male and female he created them. (Genesis 1:26-27)
Jesus is the Son of God. Jesus lived a sinless life and offered himself as a perfect sacrifice for the sins of the whole world. Jesus rose from the grave and ascended into heaven and will return again to rule heaven and earth.
"All this took place to fulfill what the Lord had through the prophet: The virgin will conceive and give birth to a son, and they will call him Immanuel (which means "God with us". (Matthew 1:22-23)
Salvation is a gift from God, we can't do anything to earn it. Only by accepting Jesus Christ as Lord and Savior can you receive the gift of the Holy Spirit and eternal life.
"If you declare with your mouth, "Jesus is Lord", and believe in your heart that God raised him from the dead, you will be saved." (Romans 10:9)
The Bible is God's spoken word. It is the supreme truth for a Christian to live by without error.
"All Scripture is God-breathed and is useful for teaching, rebuking, correcting, and training in righteousness, so that the servant of God may be thoroughly equipped for every good work. " (2 Timothy 3:16-17)