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 –

1 Corinthians 4:20

4:20 For the kingdom of God is demonstrated not in idle talk but with power.

1 Corinthians 14:36

14:36 Did the word of God begin with you, or did it come to you alone?