1 Corinthians 1:5

New English Translation

⁵For you were made rich^[a] in every way in him, in all your speech and in every kind of knowledge^[b]—

1 Corinthians 1:5 sn Made rich refers to how God richly blessed the Corinthians with an abundance of spiritual gifts (cf. v. 7).
1 Corinthians 1:5 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.

New English Translation (NET)