Divine will vs. human scheming

قَالُوٓا۟ أَرْجِهْ وَأَخَاهُ وَٱبْعَثْ فِى ٱلْمَدَآئِنِ حَـٰشِرِينَ

They said, "Postpone [the matter of] him and his brother and send among the cities gatherers