1 Samuel 2:15-17

15 Likewise, before they burnt the fat, the priest's servant would come and say to the man that sacrificed, Give flesh to roast for the priest, for he will not take cooked flesh of thee, but raw.

16 And [if] the man would say unto him, Let them not fail to burn the fat today and [then] take [as much] as thy soul desires, then he would answer him, No, but thou shalt give [it to me] now, and if not, I will take [it] by force.

17 Therefore, the sin of the young men was very great before the LORD, for men despised the present of the LORD.