1 Corinthians 1:5

1:5 For you were made rich in every way in him, in all your speech and in every kind of knowledge

sn Made rich refers to how God richly blessed the Corinthians with an abundance of spiritual gifts (cf. v. 7).

sn Speech and knowledge refer to the spiritual gifts God had blessed them with (as v. 7 confirms). Paul will discuss certain abuses of their gifts in chapters 12-14, but he thanks God for their giftedness.