The Bible is the inspired Word of God, giving a true history of the creation of heaven, earth, and humanity, and containing a correct prophecy of the ages to come regarding heaven, earth, and the destiny of humanity. Moreover, there is no salvation outside of what is taught in its pages.
There is only one God (Deuteronomy 6:4). He is the creator of heaven and earth, and of all living beings. He has revealed Himself to humanity as the Father (Creator), in the son (Savior), and as the Holy Ghost (indwelling Spirit).
God is a Spirit (John 4:24). He is the Eternal One, the Creator of all things, and the Father of all humanity by creation. He is the First and the Last, and beside Him there is no God (Isaiah 44:6). There was no God formed before Him; neither shall be there any after Him (Isaiah 43:10).
Jesus is the Son of God according to the flesh (Romans 1:3) and the very God Himself according to the Spirit (Matthew 1:23). Jesus is the Christ (Matthew 16:16); the creator of all things (Colossians 1:16-17); God with us (Matthew 1:23); God made flesh (John 1:1-14); God manifested in the flesh (I Timothy 3:16); He which was, which is, and which is to come, the Almighty (Revelation 1:8); the mighty God, everlasting Father, and Prince of peace (Isaiah 9:6). Jesus Himself testified of His identity as God when He said, he that hath seen me hath seen the Father; (John 14:7-11) and I and my Father are one (John 10:30). It took shedding of blood for the remission of the sins of the world (Hebrews 9:22), but God the Father was a Spirit and had no blood to shed. Thus He prepared a body of flesh and blood (Hebrews 10:5) and came to earth as a man in order to save us, for in Isaiah 43:11 He said, beside me there is no saviour. When He came in flesh the angels sang, For unto you is born this day in the city of David a Saviour, which is Christ the Lord (Luke 2:11).
The Holy Ghost is not a third person in the Godhead, but rather the Spirit of God (the Creator), the Spirit of the resurrected Christ. The Holy Ghost comes to dwell in the hearts and lives of everyone who believes and obeys the gospel, as the comforter, Sustainer, and keeper (John 14:16-26; Romans 8:9-11).
Salvation consists of deliverance from all sin and unrighteousness through the blood of Jesus Christ. The New Testament experience of salvation consists of repentance from sin, water baptism in the name of the Lord Jesus Christ for the remission of sins, and the baptism of the Holy Ghost, after which the Christian is to live a godly life (Acts 2:36-41).
Water baptism is to be administered only by immersion. Paul said, we are buried with him [Jesus Christ] by baptism (Romans 6:4; see Colossians 2:12), Jesus came up out of the water (Mark 1:10), and Philip and the eunuch went down into the water and came up out of the water (Acts 8:38-39). Jesus death, burial, and resurrection are applied to our lives when we experience New Testament salvation: Repent [death to sin], and be baptized [burial] every one of you in the name of Jesus Christ for the remission of sins, and ye shall receive the gift of the Holy Ghost [resurrection] (see Acts 2:38; Romans 6:1-7; 8:2). Sprinkling, pouring, or infant baptism of any kind cannot be substantiated by the Word of God, but are only human traditions.
Formula for Baptism
The name in which baptism is administered is vitally important, and this name is Jesus. Jesus last command to His disciples was, Go ye therefore, and teach all nations, baptizing them in the name of the Father and of the Son, and of the Holy Ghost: (Matthew 28:19). We should notice that He said name (singular) not names. As previously explained, Father, Son, and Holy Ghost are not names of separate persons, but titles of positions held by God. An angelic announcement revealed Gods saving name in the New Testament: And she shall bring forth a son, and thou shalt call his name JESUS: for he shall save his people from their sins (Matthew 1:21). The apostles understood that Jesus was the name to use at baptism, and from the day that the church of God was established (the Day of Pentecost) until the end of their ministry, they baptized all nations (Jews Acts 8:16; Gentiles “Acts 19:5) in the name of the Lord Jesus Christ. In fact, Jesus is the only name given for our salvation. Neither is there salvation in any other: for there is none other name under heaven given among men, whereby we must be saved (Acts 4:12).
Baptism of the Holy Ghost
The baptism of the Holy Ghost is the birth of the Spirit (John 3:5). This spiritual baptism is necessary to put someone into the kingdom of God (Gods church, the Bride of Christ) and is evidenced by speaking in other tongues (other languages) as the Spirit of God give utterance. It was prophesied by Joel (Joel 2:28-29) and Isaiah (Isaiah 28:11), foretold by John the Baptist (Matthew 3:11), purchased by the blood of Jesus, and promised by Him to His disciples (John 14:26; 15:16). The Holy Ghost was first poured out on the Day of Pentecost upon the Jews (Acts 2:1-4), then upon the Samaritans (Acts 8:17), and later upon the Gentiles (Acts 10:44-46; 19:6). For the promise is unto you, and to your children, and to all that are afar off, even as many as the Lord our God shall call (Acts 2:39).
Speaking in other tongues as the Spirit of God gives utterance is the manifestation God has given as the definite, indisputable, supernatural witness or sign of the baptism of the Holy Ghost (Acts 2:4; 10:46; 19:6). It was prophesied by the prophet Isaiah as the rest and the refreshing (Isaiah 28:11-12), foretold by Jesus as a sign that would follow believers of the Gospel (Mark 16:17), and experience by Jews and Gentiles alike.
After we are saved from sin, we are commanded, Go, and sin no more (John 8:11). We are commanded to live soberly, righteously, and godly in this present world (Titus 2:12) and warned that without holiness no one shall see the Lord (Hebrews 12:14). We must present ourselves as holy unto God (Romans 12:1), cleanse ourselves from all filthiness of the flesh and spirit (II Corinthians 7:1), and separate ourselves from all worldliness (James 4:4). If the righteous scarcely be saved, where shall the ungodly and the sinner appear? (I Peter 4:18). No one can live a holy life by his own power, but only through the Holy Spirit, ye shall receive power, after that the Holy Ghost is come upon you: (Acts 1:8).