“Jesus replied, ‘You are in error because you do not know the Scriptures or the power of God.'” (Matthew 22:29, NIV)
What a stinging rebuke it was to the people to whom Jesus spoke these words: People whose business it was to know both the Scriptures and the power of God.
As followers of Jesus, we are also expected to know both the word of God, and the power of God. Our Lord expects it of us. The watching world expects it of us; and we ought to expect it of ourselves.
The former we acquire through diligent study; and the latter we acquire through faithful obedience. This is our safeguard against error. – Luther