Author of the Bible is God. The Bible (Scripture) is the main source of understanding God and the world, both spiritual and physical. All Scripture is useful for spiritual growth and increase.
Scripture tells us God in three persons, God the Father, God the Son and God the Holy Spirit. He created everything. He is subject to all without exception. He does not need our business, money, generosity, sacrifice, songs, etc. In his love he cares about us, and he gives everything people need, like Father. We, as children of God, try to be obedient to our Heavenly Father, who takes care of us.
Jesus Christ is God.
Jesus Christ was and is the true God, equal to God the Father and God the Holy Spirit. When He came to earth as a man, He remained true and perfect God. Jesus is the head of the church and obedience to Jesus is the obedience to God the Father. Jesus came to earth for the love of the people to take the blame for sin, death. That is why He died on the cross. On the third day He rose from the dead, because Jesus Christ is the sinless God.
Sin in our live.
From the day of the fall, but Jesus Christ, was not born a man without sin. The punishment for sin is death. Thus, as of the first humans Adam and Eve, we have adopted a human form, so we have adopted a sin and punishment for sin- death. There is no man without sin. God is angry when people do sin, and He commands all people everywhere to repent and begin to listen to Jesus Christ.
A man is in need of salvation. But he cannot earn or buy salvation. Forgiveness of sins is given in vain. People cannot please to God. Salvation and forgiveness of sins is given through faith in Jesus Christ and recognition of the sinful. It`s recognition of your own inability to be saved except through Jesus Christ. The recognition of Jesus as God and obedience to Him. It is repentance and faith.
Christian is a believer who believes in Jesus Christ as God and Lord, hears Jesus through a regular study of the Scriptures. He devotes himself to prayer, being watchful and thankful. He is in peace with the other believers, and has the reputation of a good man in all spheres (at home, at church, at work, friends). He has active position in family, church and society. Every Christian is responsible before God for his behavior, speech and opinion. Quality standard for the Christian is the words of Scripture, “Whatever you do, work at it with all your heart, as working for the Lord.”