(and the Mizan), that is, justice, according to Mujahid, Qatadah and others. This Ayah refers to the truth that is attested to by the sound, straight minds that oppose misguided opinions and ideas, just as Allah said in other Ayat,

[أَفَمَن كَانَ عَلَى بَيِّنَةٍ مِّن رَّبِّهِ وَيَتْلُوهُ شَاهِدٌ مِّنْهُ]

(Can they (Muslims) who rely on a clear proof from their Lord, and whom a witness from Him follows it (be equal with the disbelievers).)(11:17),

[فِطْرَةَ اللَّهِ الَّتِى فَطَرَ النَّاسَ عَلَيْهَا]

(Allah's Fitra (religion) with which He has created mankind.) (30:30), and,

[وَالسَّمَآءَ رَفَعَهَا وَوَضَعَ الْمِيزَانَ ]

(And the heaven: He has raised it high, and He has set up the Mizan.)(55:7) This is why Allah said here,

[لِيَقُومَ النَّاسُ بِالْقِسْطِ]

(that mankind may keep up justice), truth and fairness that is found in the obedience of the Messengers, in all that they conveyed from their Lord, and following all they commanded. Surely, what the Prophets brought forth is the truth, beyond which there is no truth, just as Allah said,

[وَتَمَّتْ كَلِمَةُ رَبِّكَ صِدْقاً وَعَدْلاً]

(And the Word of your Lord has been fulfilled in truth and in justice.)(6:115), His Word is true in what it conveys, and just in all its orders and prohibitions. This is why the believers say, when they take up their rooms in Paradise and assume their high grades and lined thrones,

[الْحَمْدُ لِلَّهِ الَّذِى هَدَانَا لِهَـذَا وَمَا كُنَّا لِنَهْتَدِىَ لَوْلا أَنْ هَدَانَا اللَّهُ لَقَدْ جَآءَتْ رُسُلُ رَبِّنَا بِالْحَقِّ]

(All praise is due to Allah, Who has guided us to this, and never could we have found guidance, were it not that Allah had guided us! Indeed, the Messengers of our Lord did come with the truth.)(7:43)