Judges 13:21

And the messenger of Jehovah will no more add to be seen to Manoah and to his wife. Then Manoah knew that he is the messenger of Jehovah.

Judges 6:22

And Gideon will see that he a messenger of Jehovah; and Gideon will say, Ah, Lord Jehovah! for on account that I saw a messenger of Jehovah face to face.

Judges 13:16

And the messenger of Jehovah will say to Manoah, If thou shalt detain me, I will not eat of thy bread: and if thou shalt do a burnt-offering thou shalt do it to Jehovah. For Manoah knew not that he was a messenger of Jehovah.

Hosea 12:4-5

And he will be a leader to the messenger, and he will prevail: he wept, and he will make supplication to him: in the house of God he will find him, and there he will speak with him.

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
And Gideon will see that he a messenger of Jehovah; and Gideon will say, Ah, Lord Jehovah! for on account that I saw a messenger of Jehovah face to face.
Hosea 12:4
And he will be a leader to the messenger, and he will prevail: he wept, and he will make supplication to him: in the house of God he will find him, and there he will speak with him.