Verse 21. - But. It is better rendered and, in close sequence to the preceding words. It follows, Then, i.e. when they saw him go up, they knew that he was an angel.

13:15-23 What Manoah asked for instruction in his duty, he was readily told; but what he asked to gratify his curiosity, was denied. God has in his word given full directions concerning our duty, but never designed to answer other questionings. There are secret things which belong not to us, of which we must be quite contented to be ignorant, while in this world. The name of our Lord is wonderful and secret; but by his wonderful works he makes himself known as far as is needful for us. Prayer is the ascent of the soul to God. But without Christ in the heart by faith, our services are offensive smoke; in him, acceptable flame. We may apply this to Christ's sacrifice of himself for us; he ascended in the flame of his own offering, for by his own blood he entered in once into the holy place, Heb 9:12. In Manoah's reflections there is great fear; We shall surely die. In his wife's reflection there is great faith. As a help meet for him, she encouraged him. Let believers who have had communion with God in the word and prayer, to whom he has graciously manifested himself, and who have had reason to think God has accepted their works, take encouragement from thence in a cloudy and dark day. God would not have done what he has done for my soul, if he had designed to forsake me, and leave me to perish at last; for his work is perfect. Learn to reason as Manoah's wife; If God designed me to perish under his wrath, he would not give me tokens of his favour.But the angel of the Lord did no more appear to Manoah and to his wife,.... As the flame and smoke ascended, he disappeared therewith, and was seen no more:

then Manoah knew that he was an angel of the Lord; by the wondrous things he did, causing fire to come down from heaven, or out of the rock, ascending in the midst of the flame, without being hurt by it, and going up to heaven in it.