This is a twisting of 1 Sam 15:23. It has sometimes been used by heretics to instill fear that people who rebel against spiritual authority (themselves, for example!) are guilty of the sin of witchcraft. This is serious! Marcus Rogers likes to take it out of context to more generally `imply that rebellion (all? just the sin he wants to judge others for? he’s not clear) is witchcraft. Guys, you can’t leave out the word “as”, and you can’t try to equate any or all sin with actual witchcraft.
Now that you know what you look for, don’t fall it!