No, there is no unity in denominationalism. But my question is about the written word of God, is the claim being made it cannot ever be understood correctly?
Yes--
The Role of the Holy Spirit
John 16:13
"However, when He, the Spirit of truth, has come, He will guide you into all truth; for He will not speak on His own authority, but whatever He hears He will speak; and He will tell you things to come."
The Holy Spirit guides believers into all truth, helping them understand scripture.
1 Corinthians 2:12-14
"Now we have received, not the spirit of the world, but the Spirit who is from God, that we might know the things that have been freely given to us by God. These things we also speak, not in words which man's wisdom teaches but which the Holy Spirit teaches, comparing spiritual things with spiritual. But the natural man does not receive the things of the Spirit of God, for they are foolishness to him; nor can he know them, because they are spiritually discerned."
The Holy Spirit enables believers to comprehend spiritual truths that might be obscure to those without the Spirit.
The Importance of Study and Teaching
2 Timothy 2:15
"Be diligent to present yourself approved to God, a worker who does not need to be ashamed, rightly dividing the word of truth."
Diligent study and correct interpretation of scripture are encouraged.
Acts 17:11
"These were more fair-minded than those in Thessalonica, in that they received the word with all readiness, and searched the Scriptures daily to find out whether these things were so."
The Bereans are commended for their eagerness to study the scriptures and verify teachings.
The Clarity and Sufficiency of Scripture
Psalm 19:7-8
"The law of the LORD is perfect, converting the soul; the testimony of the LORD is sure, making wise the simple; the statutes of the LORD are right, rejoicing the heart; the commandment of the LORD is pure, enlightening the eyes."
Scripture is described as perfect, trustworthy, and enlightening, indicating its clarity and sufficiency for guidance.
2 Timothy 3:16-17
"All Scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness, that the man of God may be complete, thoroughly equipped for every good work."
All scripture is inspired by God and is useful for teaching, correcting, and training in righteousness.
The Need for Humility and Openness
James 1:5
"If any of you lacks wisdom, let him ask of God, who gives to all liberally and without reproach, and it will be given to him."
Believers are encouraged to seek wisdom from God, who generously grants understanding.
Psalm 119:18
"Open my eyes, that I may see wondrous things from Your law."
A prayer for spiritual insight, recognizing the need for God's help in understanding His word.
The Role of the Community and Teachers
Ephesians 4:11-13
"And He Himself gave some to be apostles, some prophets, some evangelists, and some pastors and teachers, for the equipping of the saints for the work of ministry, for the edifying of the body of Christ, till we all come to the unity of the faith and of the knowledge of the Son of God, to a perfect man, to the measure of the stature of the fullness of Christ."
God provides teachers and leaders in the church to help believers grow in understanding and maturity.
1 John 2:27
"But the anointing which you have received from Him abides in you, and you do not need that anyone teach you; but as the same anointing teaches you concerning all things, and is true, and is not a lie, and just as it has taught you, you will abide in Him."
The Holy Spirit's anointing teaches believers, emphasizing personal and direct guidance in understanding scripture.
Conclusion
The written word of God can be understood correctly through the guidance of the Holy Spirit, diligent study, sound teaching, and a humble heart seeking wisdom. While the process may require effort and prayer, scripture itself promises clarity and insight to those who earnestly seek to understand and apply its truths.