Exodus 4:10
TSK
Moses said to Yahweh, "O Lord, I am not eloquent, neither before now, nor since you have spoken to your servant; for I am slow of speech, and of a slow tongue."
TSK
TSK · Exodus 6:30
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For if I preach the Good News, I have nothing to boast about; for necessity is laid on me; but woe is to me, if I don't preach the Good News.