and fulfill the covenant of allah when you have covenanted and break not the oaths after you have confirmed them and indeed you have appointed allah your surety. verily! allah knows what you do.
وأوفوا بعهد الله إذا عاهدتم ولا تنقضوا الأيمان بعد توكيدها وقد جعلتم الله عليكم كفيلا إن الله يعلم ما تفعلون