“Be not like a horse or a mule, without understanding, which must be curbed with bit and bridle, or it will not stay near you” (Psalm 32:9). “Therefore do not be foolish, but understand what the will of the Lord is” (Ephesians 5:17).
In conclusion, does having faith mean we have to stop using our mind? Undoubtedly, we are told to acknowledge God in all our plans and endeavours. We need to consult Him and bring our thoughts captive to His will; trust Him more than our own insight. But we are never told to stop exercising our rational mind (Proverbs 3:5-6, James 4: 13-15, 2 Corinthians 10:5).