For he knew not what to say; for they were sore afraid.
For he knew not what to say; for they were sore afraid.
For he knew not what to answer; for they became sore afraid.
Because he was not certain what to say, for they were in great fear.
For he knew not what to say: for they were greatly terrified.
For he didn't know what to say, for they were very afraid.
For he wist not what to answer; for they became sore afraid.
He wist not - He "knew not." He was desirous of saying something, and he knew not what would be proper.