The Devil Made You Do What?
Having just introduced in the previous verses a counter-intuitive approach to trials in which the suffering reader should rejoice that God is producing character in such a way, James now moves on to a very strongly related matter. It's no accident, in fact, that the same word translated as "trial" in verse 2 is also translated "temptation" in verse 13.
In the many character-building experiences we endure through life, we have two options: follow Christ or follow our sinful nature. To react to any situation in a way unworthy of Christ is to sin. So, naturally, if God sends trials, is it God who tempts us to sin? James addresses this misconception head-on: NO!
As many of us logical creatures might desire a well-developed explanation of how this can be so, James instead appeals to a different argument: the character of God. He does not delve into dangerous re-definition of terms or create slithery distinctions of the permissive vs. active will. To James, there is no need. God's character alone answers the question, all that's left is our faith to accept it. Faith, that is, in who God has revealed Himself to be, not in how God has (or hasn't) revealed Himself to perform.
Once we accept God's character as the under-girding principle that answers our question, we're left with one shameful realization: who we are in contrast to His revealed character. The very next verse draws the damning conclusion that temptation does not, in fact, come from God but from our own sinful natures. We men, the ones created pure and yet determined to spoil it, stand inquiring of God, "why did you put me in the situation where I could sin?" when all along the ONLY one in the entire universe that is totally undeserving of any allegations is God Himself.
The fact is, we can't even face good times, let alone trials, without burning with sinful desires. We don't need God's help to find excuses to sin. It's not as though the trials that He brings us in any way deepen the effect of the fall in our lives. No, in all situations we are damned to sin. Praise be to God, the Father of the heavenly lights, who gives us a good and perfect gift in His Son.