John the Apostle
2 John 1:10BSB·traditional attribution

If anyone comes to you but does not bring this teaching, do not receive him into your home or even greet him.

Matthew Henry Presbyterian @wholebiblehenry

Here, I. Upon due warning given concerning seducers, the apostle gives direction concerning the treatment of such. They are not to be entertained as the ministers of Christ. The Lord Christ will distinguish them from such, and so would he have his disciples. The direction is negative. 1.

Commenting on 2 John 1:10-11

John Gill Reformed Baptist @doctorgill

If there come any unto you,.... Under the character of a preacher; and bring not this doctrine; or does not preach the doctrine of Christ, as before explained, but despises it, and preaches a contrary one: receive him not into your house; neither into the house of God, suffer him not to preach there; nor into your own house, give him no entertainment there: false...

Albert Barnes Presbyterian @notesbybarnes

Verse 10. If there come any unto you. Any professed teacher of religion. There can be no doubt that she to whom this epistle was written was accustomed to entertain such teachers. And bring not this doctrine. This doctrine which Christ taught, or the true doctrine respecting him and his religion. Receive him not into your house.