God is the Creator and Ruler of the Universe (Genesis 1:1, Ps 90:2). God has eternally existed in three persons: the Father, the Son, and the Holy Spirit (John 1:1-5, Matthew 28:19). These three are co-eternal and are one God. (1 Peter 1:2) The Godhead is one yet complex. The Father is not the Son. The Son is not the Holy Spirit. But the Father, the Son and the Holy Spirit are equally God.
Concerning Jesus Christ
Jesus Christ is the Son of God; the Incarnate Word of God and therefore co-equal with the Father. (John 1:1-5) Jesus lived a sinless human life (Hebrews 4:14-15) and offered himself as the perfect sacrifice, once for all, for the sins of all people by dying on the Cross. (1 Peter 3:18) Three days after he was killed, God raised Jesus to life. (1 Corinthians 15:3-8) His resurrection demonstrates God’s power over death (Romans 1:4). He ascended to the right hand of the Father (Hebrews 1:3). We look forward to His second coming. (1 Corinthians 15:20-24)
Concerning the Holy Spirit
The Holy Spirit is co-equal with the Father and the Son, was sent and is present in the world to convict people of their sin, (John 16:8) to guide people into all truth (John 16:13)enables us to understand God and His Word (1 Corinthians 2:12-16), assures us of our inheritance (Ephesians 1:13-14) and empowers us to live authentic Christian lives through the Gifts of the Spirit (1 Corinthians 12:7-11) and the Fruit of the Spirit. (Galatians 5:22)
Concerning the Bible
The Bible is the written word of God and as such, is supremely authoritative in all matters of faith and conduct. (2 Timothy 3:14-17) The Bible has been written by human hands under the guidance of the Holy Spirit. People wrote; God was in control.