Al-Mujadila 58:16

Ittakhathoo aymanahum junnatanfasaddoo AAan sabeeli Allahi falahum AAathabunmuheen

They took their [false] oaths as a cover, so they averted [people] from the way of Allāh, and for them is a humiliating punishment.

They have taken their oaths as a shield, and then have prevented (people) from the way of Allah. Therefore, for them there is a humiliating punishment.