According to Hunt (16), key examples of the practice of abstention from some human needs and wants for the purpose of ritual or cultic purity included avoiding impure foods as ordained by the Mosaic Laws, as evidenced in Judaism. It is notable that the form of and the length of ascetic abstention varied widely depending on the individual, religion, and purpose of abstention. MacDonald (330) agreed with the above claims, stating that some people pursued ascetic abstention as a commitment of a lifetime, such as the choice by a monk to abstain from any sexual activities to purify oneself and be considered among the eunuchs destined to enter the Kingdom of Heaven by virtue of their righteousness (Matt. 19:12). This practice is also common among Catholic Christians whose Priests and Nuns abstain from the joy of family and marriage, and instead dedicate their lives to church and serving God (married to the church). In the same regard, Nathan (458) added that the practice of abstention might also be practiced periodically or occasionally, such as on the ‘Day of Atonement’ when the Jews fasted to be pious before God.