John Gill Commentary Numbers 27:23

"and he laid his hands upon him, and gave him a charge, as Jehovah spake by Moses." — Numbers 27:23 (ASV)

And he laid his hands upon him
Jarchi observes, that he did this cheerfully, and did more than he was commanded; for the Lord said to him, "lay your hand", but he laid both his hands:

and gave him a charge, as the Lord commanded Moses ;
(Numbers 27:19) , this is a clear proof that Moses was no imposter, since he sought not to aggrandize his family, or serve the interest of that; nor did he in the least repine or murmur that the priesthood was given to his brother Aaron and sons, and now the civil government to his servant of the tribe of Ephraim; and as for his own posterity, they were only common Levites that waited upon the priests.