In whom is the spirit... — The definite article is not used in the original. The word translated “spirit” appears to denote spiritual endowment and qualifications.
And lay thine hand upon him. — It is to be observed that the spiritual qualifications of Joshua did not supersede the necessity of an outward consecration to his office. Nay, more; it seems that special qualifications for the office were bestowed in connection with the imposition of the hands of Moses, for it is written in Deuteronomy 34:9 that “Joshua the son of Nun was full of the spirit of wisdom; for Moses had laid his hands upon him.”