Exodus 4:10

10But Moses said to the Lord, “Oh, my Lord, I am not eloquent, either in the past or since you have spoken to your servant, but aI am slow of speech and of tongue.”

Isaiah 3:3

3the captain of fifty
and the man of rank,
the counselor and the skillful magician
and the expert in charms.

1 Corinthians 2:1-2

Proclaiming Christ Crucified

1And I, when I came to you, brothers,
Or  brothers and sisters
cdid not come proclaiming to you dthe testimony
Some manuscripts mystery (or secret)
of God with lofty speech or wisdom.
2For I decided to know nothing among you except fJesus Christ and him crucified.

2 Corinthians 10:10

10For they say, “His letters are weighty and strong, but ghis bodily presence is weak, and hhis speech of no account.”
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