What kind of sin disgusts Jesus? He is certainly appalled by sexual sin, religious idolatry, and worldly compromise, but in the seven letters to the churches of Revelation, his harshest words are reserved for lukewarm Laodicea. In this letter to Laodicea, Jesus calls them and us out of spiritual apathy and lukewarmness by showing his disgust for it, describing what it looks like, detailing a path back, and revealing that he rebukes in grace.