To be the companion and interpreter of Moses in this expedition, of which see Exodus 3:10, Exodus 4:12, &c. This clause he adds, to show that Aaron was no less called and chosen by God to this work than Moses, which otherwise was not so evident from the history; or this clause may belong to both Moses and Aaron.
Related Commentaries of Psalms 105:26
Psalms 105:26
26 He sent Moses his servant; and Aaron whom he had chosen.