Numbers 30:14

But if her husband altogether hold his peace at her from day today,.... Said not one word to her day after day, neither on the day he heard her vow, nor the day following:

then he establisheth all her vows, or all her bonds, which are upon her; by his silence:

he confirmeth them, because he held his peace at her, in the day that he heard them; for not to contradict them was to confirm them.