Once convincing proof is given, most people will modify or change their opinions about things. One thing is true though, that strife and arguments may cause a person to “give in,” but that does not mean they changed their opinion. We will sometimes defend our position even if we know we are wrong—as a matter of principle or pride. Benjamin Franklin said, “A man convinced against his will is of the same opinion still.”
There is a beautiful account of an opinion that changed, but the change seemed to come by degree. It is the account of two of Jesus' followers who were walking away from Jerusalem in a confused state. They were of the opinion that Jesus would “redeem” Israel (Luke 24:21 Luke 24:21But we trusted that it had been he which should have redeemed Israel: and beside all this, to day is the third day since these things were done.
American King James Version×). They had a very different opinion of what the Messiah would be doing. It took some time for their minds to accept new truth. Our will needs to be formed to want truth—when it is, any truth will be readily accepted and our opinions can change. Be of the will to receive truth.