21 Without saying a word, the man watched her closely to learn whether or not the LORD had made his journey successful.

Read Genesis 24:21 Using Other Translations

And the man wondering at her held his peace, to wit whether the LORD had made his journey prosperous or not.
The man gazed at her in silence to learn whether the LORD had prospered his journey or not.
The servant watched her in silence, wondering whether or not the LORD had given him success in his mission.