Prophet Ishaq (AS)’s story: During their old age, Ibrahim (AS) and his first wife Sarah (p.b.u.h), the angels came in the form of humans to announce two news: a good one and a bad one.  The bad one was that Allah (s.w.t) will destroy the people of Lut (p.b.u.h) and the good one was that that the couple will beget a son, whom they named Ishaq (p.b.u.h).