Definition: The term "Alcahest" appears several times in the Hebrew Bible, particularly the books of Genesis, Exodus, Numbers, and Leviticus. These verses typically deal with the Israelite relationship with God and their responsibilities towards them. In Genesis 18:19, it is stated that Abraham gave Isaac a servant, saying "I am the Lord your God; you shall not be an Amalekite." This refers to Isaac as a servant, and Abraham's promise of a son. The servant symbolized the Israelites under the leadership of their father Isaac. In Exodus 20:1-19, the Israelites are commanded to follow the Torah (the divine commandments), which they must do from the time they depart Egypt until the death of Moses. In this verse, it states that God's servant was given as a sign by Moses, indicating he had already been prepared and was ready for his purpose. In Numbers 15:28-30, Israelites are commanded to offer sacrifices at certain times in preparation for the annual festival. The term "alcahest" refers to the offering of animals or animals' blood as a symbol of God's covenant with Abraham through Isaac. Finally, Leviticus 27:3 states that every person must observe the Sabbath from all day until sundown. This is in reference to the Israelites' responsibility towards the Lord and the obligation to keep His commandments during the week. The word "alcahest" has a multitude of meanings in the Hebrew Bible, but it most closely associates with Abraham's covenant with God through Isaac and the law of the Sabbath. These verses represent God's demands on the Israelites' lives, as well as their responsibilities towards Him.