﴿ ٱتَّخَذُوٓا۟ أَيْمَٰنَهُمْ جُنَّةًۭ فَصَدُّوا۟ عَن سَبِيلِ ٱللَّهِ فَلَهُمْ عَذَابٌۭ مُّهِينٌۭ ﴾

“they have made their oaths a cover [for their falseness], and thus they turn others away from the path of God: hence, shameful suffering awaits them.”

They have taken their oaths as a shield a means of protection for themselves and their possessions and so they bar thereby the believers from the way of God that is from engaging in a struggle against them thereby slaying them and seizing their possessions. So for them there will be a humiliating chastisement.