Here are 7 Bible verses about reasoning from the Old and New Testaments of the Holy Bible (King James Version), sorted from most to least relevant.
Isaiah 43:26 KJV
Put me in remembrance: let us plead together: declare thou, that thou mayest be justified.
Isaiah 1:18 KJV
Come now, and let us reason together, saith the LORD: though your sins be as scarlet, they shall be as white as snow; though they be red like crimson, they shall be as wool.
1 Corinthians 13:11 KJV
When I was a child, I spake as a child, I understood as a child, I thought as a child: but when I became a man, I put away childish things.
Acts 17:1-3 KJV
Now when they had passed through Amphipolis and Apollonia, they came to Thessalonica, where was a synagogue of the Jews: And Paul, as his manner was, went in unto them, and three sabbath days reasoned with them out of the scriptures, Opening and alleging, that Christ must needs have suffered, and risen again from the dead; and that this Jesus, whom I preach unto you, is Christ.
1 Peter 3:15 KJV
But sanctify the Lord God in your hearts: and be ready always to give an answer to every man that asketh you a reason of the hope that is in you with meekness and fear:
Romans 2:14-15 KJV
For when the Gentiles, which have not the law, do by nature the things contained in the law, these, having not the law, are a law unto themselves: Which shew the work of the law written in their hearts, their conscience also bearing witness, and their thoughts the mean while accusing or else excusing one another;)
Isaiah 55:8-9 KJV
For my thoughts are not your thoughts, neither are your ways my ways, saith the LORD. For as the heavens are higher than the earth, so are my ways higher than your ways, and my thoughts than your thoughts.