Leviticus 16:13

16:13 He must then put the incense on the fire before the Lord, and the cloud of incense will cover the atonement plate which is above the ark of the testimony, ¹  so that he will not die. ² 

¹ tn The text here has only “above the testimony,” but this is surely a shortened form of “above the ark of the testimony” (see Exod 25:22 etc.; cf. Lev 16:2). The term “testimony” in this expression refers to the ark as the container of the two stone tablets with the Ten Commandments written on them (see Exod 25:16 with Deut 10:1, 5, etc.).

² tn Heb “and he will not die,” but it is clear that the purpose for the incense cloud was to protect the priest from death in the presence of the Lord (cf. vv. 1-2 above).