Judges 13:21

And the messenger of Yahweh did no more appear unto Manoah or unto his wife. Then, Manoah knew that, the messenger of Yahweh, he was.

Judges 6:22

Then saw Gideon that, the messenger of Yahweh, it was, - so Gideon said - Alas, My Lord Yahweh! forasmuch as I have seen the messenger of Yahweh, face to face!

Judges 13:16

But the messenger of Yahweh said unto Manoah - Though thou detain me, yet will I not eat of thy food, and, though thou make ready an ascending-sacrifice, unto Yahweh, must thou cause it to ascend. For Manoah had not discerned that, the angel of Yahweh, he was.

Hosea 12:4-5

Yea he strove against a Messenger, and prevailed, he wept, and made supplication unto him, - At Bethel, he found him, and, there, he spake with us;

Treasury of Scripture Knowledge

Summary

But the angel of the LORD did no more appear to Manoah and to his wife. Then Manoah knew that he was an angel of the LORD.

Bible References

Knew

Judges 6:22
Then saw Gideon that, the messenger of Yahweh, it was, - so Gideon said - Alas, My Lord Yahweh! forasmuch as I have seen the messenger of Yahweh, face to face!
Hosea 12:4
Yea he strove against a Messenger, and prevailed, he wept, and made supplication unto him, - At Bethel, he found him, and, there, he spake with us;