What does it mean that no lie is of the truth?

When John states that 'no lie is of the truth,' he implies that God cannot lie and therefore does not save through deceit. This reinforces the idea that any teaching that deviates from the clear teachings of Scripture is inherently false and not reflective of God's nature. Scripture consistently elevates the character of God as one who is just and true, highlighting that God’s salvific work is accomplished solely through the truth of the Gospel. Consequently, believers are called to renounce lies and embrace the clarity of God’s truth, as it is revealed in His Word.