1 Corinthians 2:16
2:16 For who has known the mind of the Lord, so as to advise him? 1 But we have the mind of Christ.
1 Corinthians 10:21
10:21 You cannot drink the cup of the Lord and the cup of demons. You cannot take part in the table of the Lord and the table of demons.
1 sn A quotation from Isa 40:13.