אָסַר עַל נַפְשׁוֹ

ביטוי (אנגלית)

to take a vow of abstinence / to refrain from / abstain from

הגדרה (אנגלית)

Figuratively: He decreed upon himself to do something or to refrain from a certain action.

("And her father heard her vow, and her bond with which she bound her soul, and her father held his peace at her; then all her vows shall stand" - Numbers 30:5)