"Peace" in the Bible is something a little more forceful and active than the normal idea we have of "peace"; it represents the harmony and one-ness we feel when our hearts and our minds are aligned with the Lord, when we want what He wants and understand the wisdom He bestows.

The language is tricky in this verse, though. "God" represents divine truth, or the most profound and perfect ideas expressing the Lord's love. But what the King James Version expresses as "children" is rendered as "sons" in more literal translations. "Sons" represent individual true ideas, or true ideas about specific things. "Children" represent a state of innocence and willingness to be led. So does this mean that those who become aligned with the Lord's love and wisdom will become forms of truth themselves, expressing ideas drawn from divine truth to help others? Or does it mean they will be innocent, and willing to follow the divine truth? Both make sense.