Exodus 29:41-42

41And the other lamb you shall offer at twilight, and do with it as with the grain offering of the morning and with the drink offering, for a sweet and soothing aroma [to appease God], an offering by fire to the Lord.

42This will be a continual burnt offering throughout your generations at the doorway of the Tent of Meeting before the Lord, where I will meet with you, to speak to you there.