The punishment of the prophet - They are both equally guilty; both have left the Lord, and both shall be equally punished.
Matthew Henry
Concise Bible Commentary
No outward form or reformation can be acceptable to God, so long as any idol possesses the heart; yet how many prefer their own devices and their own righteousness, to the way of salvation! Men's corruptions are idols in their hearts, and are of their own setting up; God will let them take their course. Sin renders the sinner odious in the eyes of the pure and holy God; and in his own eyes also, whenever conscience is awakened. Let us seek to be cleansed from the guilt and pollution of sins, in that fountain which the Lord has opened.
SDA Bible Commentary (limited)
Volume 1-7
10. Even as. The false prophets and those who inquire of them had participated mutually and were held alike guilty.