I don't believe that Gods Word is open to various interpretations. There is no wiggle room, when it comes to the imperative, (essential) doctrines.
Gods sovereignty over every aspect of His creation, is the most rejected of all bible doctrines. The Bible does confirm that God is sovereign over the smallest things, such as the number of hairs on your head, and right through to the big ticket things such as, who will be saved and who will be left in their unregenerate condemned state.
Most Christian denominations reject Gods Word, when it speaks about Gods sovereign decrees, predestination onto salvation. And when we read about God tormenting sinners for eternity in hell fire. Many of these Christian Denominations, don't believe that God allows evil doers to rape and murder His children. Even though the Bible is clear that nothing can happen apart from Gods will.
Various Denominations interpret and teach radically different and opposing versions of the gospel. It's OK to have different views on the inconsequential doctrines, such as eschatology, but it's not OK to fellowship with others at the expense of the gospel truth.
The Ecumenical Movement, requires it's subscribers to sacrifice some of their core beliefs, for the sake of "Christian Unity".
When it come to interpreting and understanding Gods Word, the Bible tells us that spiritual things cannot be understood by the natural man, (unconverted man). It states that the things of God are foolishness to him, and he can't receive them because they are spiritually discerned (only understood by those who are indwelt by the Holy Spirit).
The Holy Spirit leads saved people, into all truth. The Bible describes those whom God has not regenerated and quickened to life as "blind", they can see with their eyes but they can't comprehend spiritual things. God is Spirit, so it is impossible for the natural man to believe in God.
Many professing Christians are self deluded, they are not actually converted or saved. Jesus describes them as "many will come t Me on that day, saying Lord Lord. But He tells them to depart from Him into the lake of fire, because He never knew them".
Proverbs 14:12 There is a way that seems right to a man, But its end is the way of death.
In the same way, many approach the Bible with a certain expectation and they presume upon the Lord. They base their understanding on their own wisdom and discernment, instead of being instructed by Gods Word, they make Gods Word conform to their views.
The Bible confirms that every single person is born dead in sin, this means that it is impossible for them to respond to the gospel message with faith. The only way a person receives the gospel, is if God first gives them the gift of faith, so when they hear the gospel they do believe it.
Faith is not something that everyone is born with, nor can anyone produce or manufacture their own faith. It is the gift of God, lest anyone boast.
God only made two covenants with man, 1. was the Covenant of the Law. And 2. is the Covenant of Grace. Adam was under the covenant of the law and everyone after him is under the covenant of grace.
You may think that man contributes something to his salvation, but we have verses like >>> John 15:5 "I am the vine, you are the branches. He who abides in Me, and I in him, bears much fruit; for without Me you can do nothing".
And
1 Corinthians 4:7 "For who makes you differ from another? And what do you have that you did not receive? Now if you did indeed receive it, why do you boast as if you had not received it?"