suggesting that there was some personal influence probably therefore demonic that was capable of
“suggesting that there was some personal influence (probably therefore demonic) that was capable of receiving a rebuke from Jesus.”
Grudem, Wayne A. Systematic Theology: An Introduction to Biblical Doctrine. Zondervan, 2009, loc. 514.
This is not a conclusion that can be drawn. Jesus rebuked a fig tree (Mark 11:14) and a storm (Mark 4:39) does that create the necessary inference that there is some personal nature involved.