Context is everything. Ypu can usually learn alot concerning the context of a book in the bible by reading the salutation. For example:
1 Peter: Peter, an apostle of Jesus Christ,
To the pilgrims of the Dispersion in Pontus, Galatia, Cappadocia, Asia, and Bithynia, 2elect according to the foreknowledge of God the Father, in sanctification of the Spirit, for obedience and sprinkling of the blood of Jesus Christ:
Grace to you and peace be multiplied.
By the salutation, who do we see that the book of 1Peter was written to? ALL people in the world or believers?
Later in verse 20 we read this:
20He indeed was foreordained before the foundation of the world, but was manifest in these last times for you 21who through Him believe in God, who raised Him from the dead and gave Him glory, so that your faith and hope are in God.
Now based on the conclusion that we come to due to the salutation beginning with verse 1, to whom is verse 20 and 21 written? To every single person in the world or to believers?
The most beautiful message taken out of context can be distorted terribly. The only way to understand the context of a single verse is to learn 1) Who wrote the book you are reading, 2) Who they wrote it TO, 3) Approximately WHEn it was written, and 4) What happened before and after the verse in question.
And as stated, PRAYER and careful consideration are a must. We must come to the end of ourselves and our own preconceptions and get to the message that is being laid out for us.