Word by Word Analysis

إِذْ جَآءَتْهُمُ ٱلرُّسُلُ مِنۢ بَيْنِ أَيْدِيهِمْ وَمِنْ خَلْفِهِمْ أَلَّا تَعْبُدُوٓا۟ إِلَّا ٱللَّهَ ۖ قَالُوا۟ لَوْ شَآءَ رَبُّنَا لَأَنزَلَ مَلَـٰٓئِكَةً فَإِنَّا بِمَآ أُرْسِلْتُم بِهِۦ كَـٰفِرُونَ 14

[That occurred] when the messengers had come to them before them and after them, [saying], "Worship not except Allāh." They said, "If our Lord had willed, He would have sent down the angels, so indeed we, in that with which you have been sent, are disbelievers."