Isaiah 49:17

Isaiah saw the builders of Jerusalem’s breached walls hurrying to rebuild them after their destroyers had departed. In other words, Jerusalem would not be in a vulnerable condition for very long, relatively speaking. The builders were the sons that Zion thought had been denied her. The Hebrew word translated "builders," bonayik, is almost identical to the word translated "sons," banayik, and may have been deliberately ambiguous to communicate both ideas. Originally only the consonants, which are identical, appeared in the text.