The Word of God cannot be changed or made of no effect. Your unbelief doesn't change the position of the Word. Jesus is the Truth who abides forever. The Truth keeps you from sin and unrighteousness and unrighteousness keeps you from the Truth. No man can pretend to keep the commandments if the Truth isn't in him. The enemy of the Truth is ever learning and not coming to knowledge of the Truth. Profitable workers have used the Truth to profit self and the Kingdom.