SEV Biblia, Chapter 7:7
Moisés entonces era de edad de ochenta años, y Aarón de edad de ochenta y tres, cuando hablaron al Faraón.
Clarke's Bible Commentary - Exodus 7:7
Verse 7. Moses was fourscore years old] He was forty years old when he went to Midian, and he had tarried forty years in Midian; (see chap. ii. 11, and Acts vii. 30;) and from this verse it appears that Aaron was three years older than Moses. We have already seen that Miriam their sister was older than either, chap. ii. 4.
Matthew Henry Commentary
Verses 1-7 - God glorifies himself. He makes people know that he is Jehovah. Israe is made to know it by the performance of his promises to them, and the Egyptians by the pouring out of his wrath upon them. Moses, as the ambassador of Jehovah, speaking in his name, laid commands upo Pharaoh, denounced threatenings against him, and called for judgment upon him. Pharaoh, proud and great as he was, could not resist. Mose stood not in awe of Pharaoh, but made him tremble. This seems to be meant in the words, Thou shalt be a god unto Pharaoh. At length Mose is delivered from his fears. He makes no more objections, but, being strengthened in faith, goes about his work with courage, and proceed in it with perseverance.
Original Hebrew
ומשׁה 4872 בן 1121 שׁמנים 8084 שׁנה 8141 ואהרן 175 בן 1121 שׁלשׁ 7969 ושׁמנים 8084 שׁנה 8141 בדברם 1696 אל 413 פרעה׃ 6547