Numbers 28:3

You will say to them, ‘This is the offering made by fire which you must offer to the Lord: two unblemished lambs one year old each day for a continual ¹  burnt offering.

Ex 29:38,39; Le 6:9; Eze 46:13-15; Da 8:13; Da 11:31; Da 12:11; Joh 1:29; 1Pe 1:19,20; Re 13:8

¹ sn The sacrifice was to be kept burning, but each morning the priests would have to clean the grill and put a new offering on the altar. So the idea of a continual burnt offering is more that of a regular offering.