Leviticus 4:4

4:4 He must bring the bull to the entrance of the Meeting Tent before the Lord, lay his hand on the head of the bull, and slaughter the bull before the Lord.

Leviticus 10:15

10:15 The thigh of the contribution offering and the breast of the wave offering they must bring in addition to the gifts of the fat parts to wave them as a wave offering before the Lord, and it will belong to you and your sons with you for a perpetual statute just as the Lord has commanded.”

Leviticus 10:19

10:19 But Aaron spoke to Moses, “See here! ¹  Just today they presented their sin offering and their burnt offering before the Lord and such things as these have happened to me! If I had eaten a sin offering today would the Lord have been pleased?” ² 

[10:19]  ¹ tn Or “Behold!” (so KJV, ASV, NASB); NRSV “See.”

[10:19]  ² tn Heb “today they presented their sin offering and their burnt offering before the Lord, and like these things have happened to me, and (if) I had eaten sin offering today would it be good in the eyes of the Lord?” The idiom “would it be good in the eyes of [the Lord]” has been translated “would [the Lord] have been pleased.” Cf. NRSV “would it have been agreeable to the Lord?”; CEV, NLT “Would the Lord have approved?”