1 Corinthians 2:4

2:4 My conversation and my preaching were not with persuasive words of wisdom, but with a demonstration of the Spirit and of power,

1 Corinthians 2:13

2:13 And we speak about these things, not with words taught us by human wisdom, but with those taught by the Spirit, explaining spiritual things to spiritual people. ¹ 

1 Corinthians 12:8

12:8 For one person is given through the Spirit the message of wisdom, and another the message of knowledge according to the same Spirit,

[2:13]  ¹ tn Or “combining spiritual things with spiritual words” (i.e., words the Spirit gives, as just described).