415. And I looked, and I heard an angel flying in the midst of heaven. (8:13) This symbolizes instruction and prediction from the Lord.

In the highest sense an angel means the Lord, and so also something from the Lord (no. 344). And to fly in the midst of heaven and speak means, symbolically, to perceive and understand, and when said of the Lord, to foresee and provide (no. 245). But here it means to instruct and predict.

125. Be thou faithful even till death, signifies steadfastness in truths to the end. This is evident without explanation. It is said "even till death," because such as man is when he dies, such he remains to eternity; the life previously lived is only the life for the formation of his spirit (of which see many things in the work on Heaven and Hell 470-484).