Allatheena yoofoona biAAahdi Allahi wala yanqudoona almeethaq (surah Raad: 20)

Tafseer Tafheem-ul-Quran by Syed Abu-al-A'la Maududi

(13:20) they fulfil their Covenant with Allah, and break it not after confirming it. *37

Allazeena yoofoona bi`ahdil laahi wa laa yanqu doonal meesaaq

*37) This Covenant is the same that was made by Allah with the whole of mankind at the beginning of the creation that they would worship Him alone. (Please refer to E.N.'s 134 and 135 of Al-A`araf). As this Covenant has been made with every human being, it has been imbued firmly in human nature. When a human being is born in this world, he, so to say, confines the same Covenant because he owes his creation to the same Allah with Whom he had made that Covenant: then he is brought up by His Providence and fed and nourished with His Provisions, and uses the powers and faculties endowed by Him. AII these things bind him by themselves into a covenant of bondage with his Lord. It is obvious that wise, loyal and faithful people fulfil their Covenant and dare not break it except that they might break it unconsciously and unwillingly.