Listen sweetheart, you are NOT being judgemental. You are being honest. This stuff repulses you. It speaks of evil in your home. And besides the content of what he was surfing for, the true evil is the deceiption - and the lack of consideration for you.
Has he found a way to blame you for what he is doing? That sometimes happens with porn and online behavior.
You have very strict religious precepts - more strict than most people here. Is he part of that, or does he just humor you and go along?
It isn't as though you caught him looking at Playboy. It sounds like you caught him looking at fetish porn, and if my guess is right, that is particularly denigrating to women, and abusive. The effect on a Christian marriage is this: If he is to
love his wife as he would his own body, and his body is stimulated by images of women being degraded (or degrading others) what does that say about how he loves you?
HE has failed. NOT YOU.
Counseling now. Serious, Christian counseling now. Before you can throw out the porn, you have to root out the deception he is buying into - lying to himself and to you.
How dare he break your heart this way. How dare he.