Eloquent - See the margin. The double expression “slow of speech (Ezekiel 3:5 margin) and of a slow tongue” seems to imply a difficulty both in finding words and in giving them utterance, a very natural result of so long a period of a shepherd’s life, passed in a foreign land.
Since thou hast spoken - This expression seems to imply that some short time had intervened between this address and the first communication of the divine purpose to Moses.