Jehovah declared that purpose long in advance. As already noted, it unfailingly came to pass in the year 539 B.C.E.
قَالَ يَهْوَه بِفَمِ نَبِيِّهِ إِشَعْيَا :‏ « مَشُورَتِي تَثْبُتُ وَأَفْعَلُ كُلَّ مَسَرَّتِي » .‏