We need to give honor to God by the firmness with which we believe his promises. May our conduct be such as to honor God; that is, to show our conviction that God was worthy of implicit confidence and trust. In this way, we will believe in the promises of God, so as to do honor to him. Our faithful actions will bear testimony to him that he is worthy of confidence. We to will become witnesses in his favor; and furnish to our fellow-men evidence that God has a claim on the authority and trust of mankind.
But the wisdom from above is first pure then peaceable (3:17b)
The effect of true Christianity – the wisdom which is from above – that will enable, empower a true Christian to live in peace with all others. Wisdom from above pursues peace.