Adam Clarke on Acts 8:21

Thou hast neither part nor lot in this matter - Thou hast no part among the faithful, and no lot in this ministry. That the word κληρος, which we translate lot, is to be understood as implying a spiritual portion, office, etc., see proved in the note on Num 26:55 (note).

Thy heart is not right - It is not through motives of purity, benevolence, or love to the souls of men, that thou desirest to be enabled to confer the Holy Ghost; it is through pride, vain glory, and love of money: thou wouldest now give a little money that thou mightest, by thy new gift, gain much.