Christians are One, they should stand side by side with each other to question the/our enemy and debate the best out of each other between each other.

My Opinion is What I know and I will not change it until proven otherwise !

Mark 9:40
"Those who are for us are not against us."

Question in genuine sincerity but always be careful and mindful of the fact and shrewed, that the enemy may/will attack you through the person you are questioning.