[وَإِنَّهَا لَبِسَبِيلٍ مُّقِيمٍ ]

(And verily, they were right on the highroad.) meaning that the city of Sodom, which was physically and spiritually turned upside down, and pelted with stones until it became a foul smelling lake (the Dead Sea), is on a route that is easily accessible until the present day. This is like the Ayah,

[وَإِنَّكُمْ لَّتَمُرُّونَ عَلَيْهِمْ مُّصْبِحِينَ - وَبِالَّيْلِ أَفَلاَ تَعْقِلُونَ ]

(Verily, you pass by them in the morning, and at night. Will you not then reflect) (37:137-138).

[إِنَّ فِى ذَلِكَ لآيَةً لِلْمُؤْمِنِينَ ]

(Surely, there is indeed a sign in that for the believers.) meaning, `All that We did to the people of Lut, from the destruction and the vengeance, to how We saved Lut and his family, these are clear signs to those who believe in Allah and His Messengers.'

[وَإِن كَانَ أَصْحَـبُ الاٌّيْكَةِ لَظَـلِمِينَ - فَانتَقَمْنَا مِنْهُمْ وَإِنَّهُمَا لَبِإِمَامٍ مُّبِينٍ ]

(78. And the Dwellers of Al-Aykah, were also wrongdoers.) (79. So, We took vengeance on them. They are both on an open route, plain to see.)