1 Corinthians 11:18

11:18 For in the first place, when you come together as a church I hear there are divisions among you, and in part I believe it.

1 Corinthians 15:3

15:3 For I passed on to you as of first importance ¹  what I also received – that Christ died for our sins according to the scriptures,

¹ tn Grk “among (the) first things.”