Having logical consistency “boils down to not contradicting yourself in what you do, or say. In order to help you see the inconsistency that the inspired writer from the Bible wrote in the book of James first look at this everyday example about cats.  

“All cats are mammals” and “Some cats are not mammals” are logically inconsistent statements because they cannot both be true at the same time. However, the statements “All cats are mammals” and “Some mammals are cats” are logically consistent statements because they can both be true at the same time. 

Now, look at James 3:9-12 it reads; v.9 “With it we bless our Lord and Father, and with it we curse men, who have been made in the likeness of God; v.10 from the same mouth come both blessing and cursing. My brethren, these things ought not to be this way. v.11; Does a fountain send out from the same opening both fresh and bitter water?  

Did you notice the inconsistency that is being pointed out in verse nine? Here it is, on one hand we bless our Lord and Father, our creator and everyone’s Creator, who made us in his image but then curse another person he, the Father, created in his image.

That is like blessing God and cursing God because his creation is made in his image. The inspired writer cast his vote against such inconsistent behavior when he wrote,” My brethren, these things ought not to be this way.”

Furthermore, he drills in the point with verse eleven when he writes “Does a fountain send out from the same opening both fresh and bitter water? We contradict ourselves when we bless God and do not also bless those who are made in his image.