Obedience to God is a good thing. Using common sense is also a good thing. What happens when they conflict?
I was reading this weekend in 1 Kings and came across this nugget in 1 Kings 20:35-37 (NLT)
Meanwhile, the LORD instructed one of the group of prophets to say to another man, “Hit me!” But the man refused to hit the prophet. 36 Then the prophet told him, “Because you have not obeyed the voice of the LORD, a lion will kill you as soon as you leave me.” And when he had gone, a lion did attack and kill him.
1Kings 20:37 Then the prophet turned to another man and said, “Hit me!” So he struck the prophet and wounded him.
Honestly I would be hesitant to hit a person I knew to be a prophet of the Lord. It doesn't seem like a great idea. However, God had a purpose in this (v.38-43) that the guy who refused to hit the prophet couldn't see. The end he saw was hitting a prophet. My guess is he wanted to see how this would actually be a good idea before landing his haymaker. I like to be obedient when it makes sense. When it doesn't make sense I want to come up with a good Christian reason to cover my disobedience. Something along the lines of a contemporary "Surely God wouldn't have me hit a prophet!"
God takes our obedience to Him very seriously. We should value that obedience greater than our common sense.