Commandment 99 enjoins the priests to clean and make ready the lamps on the candlestick on a permanent basis, for the Torah says: "Aaron and his sons shall set it up from evening to morning before the Lord" (27,21). This is what the Talmud calls the הטבת הנרות.

Commandment 100 is the requirement of the priests to wear special garments when performing their duties. The Torah says: "Make sacred vestments for Aaron your brother, etc," (28,2).

Commandment 101 forbids the removal of the breastplate from the ephod. The Torah says: "The breastplate shall not come loose from the ephod" (28,28).

Commandment 102 forbids tearing up the Me-il, robe that the High Priest is to wear. The Torah sys: "It shall not tear" (28,32).

Commandment 103 commands the priests to eat part of the flesh of certain offerings such as various kinds of sin-offerings. The Torah says: "They shall eat of the meat which has served as their atonement" (29,33). Our sages comment on this that the atonement for the owners of these offerings becomes only complete once the priests who have performed the sacrificial service have eaten from them (Pesachim 59).

Commandment 104 commands the priests to offer incense twice a day, daily, for the Torah says: "On it Aaron shall burn incense; he shall burn it mornings and at twilight" (30,7).

Commandment 105 prohibits the offering of "alien" incense, i.e. incense not made of the components and quantities prescribed. The Torah says: "You must not offer upon it (the golden altar) alien incense" (30,9).