Trust God and believe all His Word. God says it is His word and believe it from the beginning.
"And God created the heavens and the earth ..." Genesis 1:1. If you do away with creation, Adam, Abraham, and the first three chapters of Genesis, nothing improves as you work your way through the Bible as you have destroyed the root. The questions is, can we not trust the simple truths of the Word of God, which He gave us in order to know the truth?
"All Scripture is inspired by God and profitable for teaching, for reproof, for correction, for training in righteousness; so that the man of God may be adequate, equipped for every good work," 2 Timothy 3: 16-17.