I had to find some words to reassure him.

Sanga was not entirely sure he found those words reassuring.

But the next words of his uncle's friend were reassuring.

His words should have reassured her, but they didn't.

The words of the voice had reassured him, and yet he still felt foreboding.

For a moment my blood ran cold, but his next words reassured me.

But perhaps a word or two of explanation would reassure me.

Closer to the ground, however, those words are hardly reassuring.

The grumbling died down when Henry got to his feet again, although the words he spoke were not reassuring.

I don't think your words have reassured them at all.