SEV Biblia, Chapter 4:12
Ahora pues, ve, que yo seré en tu boca, y te enseñaré lo que hayas de hablar.
Clarke's Bible Commentary - Exodus 4:12
Verse 12. I will be with thy mouth] The Chaldee translates, My WORD, meimeri, shall be with thy mouth. And Jonathan ben Uzziel paraphrases, I and my WORD will be with the speech of thy mouth. See on "Gen. xv. 1", and Lev. xxv. 10.
Matthew Henry Commentary
Verses 10-17 - Moses continued backward to the work God designed him for; there wa much of cowardice, slothfulness, and unbelief in him. We must not judg of men by the readiness of their discourse. A great deal of wisdom an true worth may be with a slow tongue. God sometimes makes choice of those as his messengers, who have the least of the advantages of art of nature, that his grace in them may appear the more glorious. Christ' disciples were no orators, till the Holy Spirit made them such. God condescends to answer the excuse of Moses. Even self-diffidence, when it hinders us from duty, or clogs us in duty, is very displeasing to the Lord. But while we blame Moses for shrinking from this dangerou service, let us ask our own hearts if we are not neglecting duties mor easy, and less perilous. The tongue of Aaron, with the head and hear of Moses, would make one completely fit for this errand. God promises I will be with thy mouth, and with his mouth. Even Aaron, who coul speak well, yet could not speak to purpose, unless God gave constan teaching and help; for without the constant aid of Divine grace, the best gifts will fail.
Original Hebrew
ועתה 6258 לך 1980 ואנכי 595 אהיה 1961 עם 5973 פיך 6310 והוריתיך 3384 אשׁר 834 תדבר׃ 1696