Then. And.
Who... where? Figure of speech Erotesis.
Behold. Figure of speech Asterismos.
these. Some codices, with Septuagint and Vulgate, read "and these", or "these therefore".
had they been. were they?
Related Commentaries of Isaiah 49:21
Isaiah 49:21
21 Then shalt thou say in thine heart, Who hath begotten me these, seeing I have lost my children, and am desolate, a captive, and removing to and fro? and who hath brought up these? Behold, I was left alone; these, where had they been?