They pledge obedience, but as soon as they leave you, some of them harbor intentions contrary to what they say. God records their innermost intentions. You shall disregard them, and put your trust in God. God suffices as an advocate.
وَيَقولونَ طاعَةٌ فَإِذا بَرَزوا مِن عِندِكَ بَيَّتَ طائِفَةٌ مِنهُم غَيرَ الَّذى تَقولُ وَاللَّهُ يَكتُبُ ما يُبَيِّتونَ فَأَعرِض عَنهُم وَتَوَكَّل عَلَى اللَّهِ وَكَفىٰ بِاللَّهِ وَكيلًا
wa yaqooloona taa’antun fa izaa barazoo min ‘indika baiyata taaa’ifatum minhum ghairal lazee taqoolu wallaahu yaktubu maa yubaiyitoona fa a’rid ‘anhum wa tawakkal ‘alal laah; wa kafaa billaahi Wakeelaa