Steps to salvation not only do we have to believe in Jesus Christ as our saviour but follow his commandments
"Jesus answered, Verily, verily, I say unto thee, Except a man be born of water and of the Spirit, he cannot enter into the kingdom of God."-(John 3:5)
"Then Peter said unto them, Repent, and be baptized 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."-(Acts 2:38)
"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)
"He that believeth and is baptized shall be saved; but he that believeth not shall be damned."-(Mark 16:16)
"The like figure whereunto even baptism doth also now save us (not the putting away of the filth of the flesh, but the answer of a good conscience toward God, ) by the resurrection of Jesus Christ"-(1 Peter 3:21)
"And Jesus answered him, The first of all the commandments is, Hear, O Israel; The Lord our God is one Lord:"-(Mark 12:29)
"One Lord, one faith, one baptism," (Ephesians 4:5)
"I, even I, am the LORD; and beside me there is no saviour." (Isaiah 43:11)
"I am the LORD: that is my name: and my glory will I not give to another, neither my praise to graven images." (Isaiah 42:8)
There is only one God and that God is the Father "Have we not all one father? hath not one God created us?..."-(Malachi 2:10) If Jesus is God it logically fallows that Jesus is the Father. Want more prove "For unto us a child is born, unto us a son is given: and the government shall be upon his shoulder: and his name shall be called Wonderful, Counsellor, The mighty God, The everlasting Father, The Prince of Peace."-(Isaiah 9:6) Jesus is the Son prophesied about and there is only ONE Father. More prove Jesus Himself taught that He was the Father. "Then said they unto him, Where is thy Father? Jesus answered, Ye neither know me, nor my Father: if ye had known me, ye should have known my Father also."-(John 8:19). "I said therefore unto you, that ye shall die in your sins: for if ye believe not that I am he, ye shall die in your sins."-(John 8:24). More prove we should note that "he" in the verse is in italics, which indicates that it is not in the original Greek, been added by the translators. Jesus was really identifying Himself with the "I AM" of (Exodus 3:14). The Jews who did not understand his meaning, asked, "Who art thou?" Jesus answered, "Even the same that I said unto you from the beginning."-(John 8:25). However "They understood not that he spake to them of the Father."-(John 8:27). In other words, Jesus tried to tell them that He is the Father and the I AM and that if they did not accept Him as God they would die in their sins.
It does not go against 1 John 5:7 I do believe that the Father, the Word which is the Son (John 1:14), and the Holy Spirit is simply God, God is Holy (Leviticus 11:44; 1 Peter 1:16) He alone is holy in Himself. God is also a spirit (John 4:24), and there is only one spirit of God (1 Corinthians 12:11; Ephesians 4:4). Therefore "Holy Spirit" is another term for the ONE God. therefore It does not go against 1 John 5:7 that the Father, the Word, and the Holy Spirit bear record in heaven and that these three are titles of the one (Jesus Christ)