New Living Translation
The angel did not appear again to Manoah and his wife. Manoah finally realized it was the angel of the LORD,

American Standard Version
But the angel of Jehovah did no more appear to Manoah or to his wife. Then Manoah knew that he was the angel of Jehovah.

Berean Study Bible
And when the angel of the LORD did not appear again to Manoah and his wife, Manoah realized that it had been the angel of the LORD.

Douay-Rheims Bible
And the angel of the Lord appeared to them no more. And forthwith Manue understood that it was an angel of the Lord,

English Revised Version
But the angel of the LORD did no more appear to Manoah or to his wife. Then Manoah knew that he was the angel of the LORD.

King James Bible
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.

World English Bible
But the angel of Yahweh did no more appear to Manoah or to his wife. Then Manoah knew that he was the angel of Yahweh.

Young's Literal Translation
and the messenger of Jehovah hath not added again to appear unto Manoah, and unto his wife, then hath Manoah known that He is a messenger of Jehovah.

Judges 13:21 Additional Translations ...