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.”

Exodus 6:12

12But Moses said to the Lord, “Behold, the people of Israel have bnot listened to me. How then shall Pharaoh listen to me, for cI am of uncircumcised lips?”

1 Corinthians 9:16-17

16For if I preach the gospel, that gives me no ground for boasting. For dnecessity is laid upon me. Woe to me if I do not preach the gospel! 17For if I do this of my own will, I have a reward, but if not of my own will, I am still entrusted with ea stewardship.
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