You belive in Scripture, correct?
Then why don't you believe this?
John 21: (We'll be using the KJV today to keep things on even footing): "And there are also many other things which Jesus did, the which, if they should be written every one, I suppose that even the world itself could not contain the books that should be written. Amen."
The Bible Itself declares that it doesn't contain everything.
What’s that got to do with taking verses out of context?
And how does that give someone blanket permission to make stuff up and call it truth?
All it needs to contain is enough to lead someone to Christ for salvation and to thoroughly equip them for the work of Christ.
And it does that.
For salvation. The book of John is enough.
John 20:30-31 Now Jesus did many other signs in the presence of the disciples, which are not written in this book; but these are written so that you may believe that Jesus is the Christ, the Son of God, and that by believing you may have life in his name.
Scripture is able to make one wise for salvation and thoroughly equip the man of God.
2 Timothy 3:14-17 But as for you, continue in what you have learned and have firmly believed, knowing from whom you learned it and how from childhood you have been acquainted with the sacred writings, which are able to make you wise for salvation through faith in Christ Jesus. All Scripture is breathed out by God and profitable for teaching, for reproof, for correction, and for training in righteousness, that the man of God may be complete, equipped for every good work.