The apostles from the New Testament received all the truth we need to guide us to eternal life. All we need to guide us to eternal life is written down in the Scriptures: John 16:13; 2 Peter 1:3; Acts 20:20, 27; Matthew 28:20; I Corinthians 14:37; 2 Timothy 3:16, 17.
God’s word is understandable even to a young child. How from infancy you have known the holy Scriptures, which are able to make you wise for salvation through faith in Christ Jesus, see 2 Timothy 3:15. We do not need elected men to interpret God’s word for us, but we are to check the scriptures to check out those claiming to be teachers, see Mark 7:14; 2 Timothy 3:15, 16, 17; John 20:30, 31; Acts 17:11; and, Psalm 119:105. For we do not write you anything you cannot read or understand. And I hope that, as you have understood us in part, you will come to understand fully that you can boast of us just as we will boast of you in the day of the Lord Jesus.
See 2 Corinthians 1:13,14. God revealed the truth to little children, and God hid the truth from the wise and learned.
Luke 10:21 At that time Jesus, full of joy through the Holy Spirit, said, “I praise you, Father, Lord of heaven and earth, because you have hidden these things from the wise and learned, and revealed them to little children. Yes, Father, for this is what you were pleased to do.
We are not to follow tradition or church laws or any human rules as authority for the church (Matthew 15:1-14; Colossians 2:8; Galatians 1:6-9; Proverbs 14:12; 2 John 9-11; Jeremiah 10:23).