If you believe what you like in the gospel, and reject what you don’t like, it is not the gospel you believe, but yourself.
I choose to believe the Bible because it is a reliable collection of historical documents written down by eyewitnesses during the lifetime of other eyewitnesses. They reported supernatural events that took place in fulfillment of specific prophecies and claimed that their writing are divine rather than human in origin.
In order to trust God, we must always view our adverse circumstances through the eyes of faith, not of sense. And just as the faith of salvation comes through hearing the message of the gospel (Romans 10:17), so the faith to trust God in adversity comes through the Word of God alone. It is only in the Scriptures that we find an adequate view of God’s relationship to and involvement in our painful circumstances. It is only from the Scriptures, applied to our hearts by the Holy Spirit, that we receive the grace to trust God in adversity.
One of these days some simple soul will pick up the Book of God, read it, and believe it. Then the rest of us will be embarrassed.
Faith does not ask for any other evidence than for the written Word of God.