John 10:28 I give them eternal life, and they shall never perish; no one will snatch them out of my hand. 29 My Father, who has given them to me, is greater than all; no one can snatch them out of my Father's hand.
So you would claim that God is powerless to protect us from ourselves? Really?
It is not a question of the power of God.
The Bible clearly shows that when men seek to stray, Yehova does nothing to inhibit them.