"Trust in the Lord with all thine heart; and lean not unto thine own understanding." Proverbs 3:5
When we are faced with a situation, when we are in the valley of decision, when we have to make a choice in a matter, the thing that often gets us in trouble, or causes us to make the wrong choice, decision or judgment, is when we lean to our own understanding.
Making a decision based on our own understanding of the situation is not always a good thing. Our understanding is not always correct. Our understanding is temporary-- it can't see past the moment. Our understanding is earthly. It is based on our knowledge which isn't always correct, which is limited and which is influenced by our feelings and emotions, traditions, fads, outside forces or popular opinion. It is often based on faulty information that is not always factual. The enemy of our soul (who wants us to do the wrong thing and make the wrong choice) will try to influence us as well.
How many times have you made a decision based on what you thought was right only to find out that it was the wrong decision? Many times, I am sure. There is one way to make sure that your decisions are correct. That would be by not leaning to your understanding but acknowledging God and leaning on His understanding. It would be by letting Him-- who sees all, knows all, sees the end from the beginning, who doesn't move emotionally but righteously and whose wisdom and understanding is so much higher and better than yours. And He knows how the decision will, or won't, fit into His plan for your life-- you don't.
So, in order to make right decisions, don't lean to your own understanding-- it is unfruitful (it doesn't know everything). Trust God's understanding of the situation and let Him direct your path/decision.
Have a great day. Leaning to our own understanding when it comes to making a decision will often lead us to make the wrong one.