Bible is a collection of texts, chosen to form a canon. They are of various age, origin and author.
Furthermore, your statement is about one interpretation of those texts, admittedly orthodox, but many
Christians do not agree with the trinity
Actually a person who claims to be a Christian can not be a Christian if they don’t believe that Jesus is God in the flesh, because that person has no savior. Jesus is the one who died so that we could be forgiven. Adam the sin introducer and Jesus, the sin forgives. Sorry, but there is only one interpretation. Jesus tries to show us that just because people read the Scriptures, certainly doesn’t mean the they know the what the Scriptures.
One example:
Matthew 22:28–34 (NASB95): In the resurrection, therefore, whose wife of the seven will she be? For they all had married her.”
29 But Jesus answered and said to them, “You are mistaken, not understanding the Scriptures nor the power of God.
30 “For in the resurrection they neither marry nor are given in marriage, but are like angels in heaven.
31 “But regarding the resurrection of the dead, have you not read what was spoken to you by God:
32 ‘I am the God of Abraham, and the God of Isaac, and the God of Jacob’? He is not the God of the dead but of the living.”
33 When the crowds heard this, they were astonished at His teaching.
34 But when the Pharisees heard that Jesus had silenced the Sadducees,
And:
Matthew 7:21–23 (NASB95): Not everyone who says to Me, ‘Lord, Lord,’ will enter the kingdom of heaven, but he who does the will of My Father who is in heaven will enter.
22 “Many will say to Me on that day, ‘Lord, Lord, did we not prophesy in Your name, and in Your name cast out demons, and in Your name perform many miracles?’
23 “And then I will declare to them, ‘I never knew you; depart from Me, you who practice lawlessness.’