“Tetzaveh” means “you will charge/command,” which opens with requirements for worship that are so important that failure to comply is simply not an option. If these needs are not met, nothing good will ever come about from that nation of Israel. We then get a lot of details about the designs of the priestly garments (ch. 28) and how the priests themselves are to be consecrated (ch. 29). The remaining 10 lines in ch. 30 concern instructions for building the altar.