فَكَيْفَ إِذَآ أَصَـٰبَتْهُم مُّصِيبَةٌۢ بِمَا قَدَّمَتْ أَيْدِيهِمْ ثُمَّ جَآءُوكَ يَحْلِفُونَ بِٱللَّهِ إِنْ أَرَدْنَآ إِلَّآ إِحْسَـٰنًا وَتَوْفِيقًا Qur’an An-Nisaa' (4:62)Fakayfa itha asabathum museebatun bima qaddamat aydeehim thumma jaooka yahlifoona biAllahi in aradna illa ihsanan watawfeeqan
Lit., "what their hands have sent ahead": an allusion to their ambivalent attitude and the confusion which it may have created in others.
I.e., they will plead that their aim was no more than a harmonization of the Qur'anic ethics with a "humanistic" (that is, man-centred) world-view: a plea which the Qur'an implicitly rejects as being hypocritical and self-deceptive (cf. {2:11-12}). As regards the phrase "whereupon they will come to thee", see verse {41} of this surah.