What sin would be the most offensive to God among "christians"?

Since you said "among christians" I take it you aren't referring to blasphemy or rejecting Christ. It's important to remember that to God sin is sin. All sin separates us from God and remember that He sent Jesus to die for us so we don't have to be separated from Him.

for christians any sin is offensive

All Sins are the same.

Rom 6:1 What shall we say then? Shall we continue in sin, that grace may abound?

Rom 6:2 God forbid. How shall we, that are dead to sin, live any longer therein?

Rom 6:3 Know ye not, that so many of us as were baptized into Jesus Christ were baptized into his death?

Rom 6:4 Therefore we are buried with him by baptism into death: that like as Christ was raised up from the dead by the glory of the Father, even so we also should walk in newness of life.

God hates all sin, but blasphemy is the only unforgivable sin. It is interesting how God hates lukewarmness among people who do not take a stand for Him as stated in Revelation.. It says that he would spew them out of His mouth.

The word isn't offensive in any respect. i do no longer locate it offensive that it rather is in our pledge and on our money, even though it makes me experience slightly unhappy interior. i do no longer see how our u . s . a . can say that we've separated state and faith, while our money is state and clearly helps a team of religions. It makes me unhappy that we are being so hypocritical. Foreigners have not have been given something to do with it. particular, people flow to different countries and get indignant via their subculture. i visit think of useful and assume maximum people a minimum of attempt to no longer try this, even though it it happens each of the time.

Blasphemy against the Holy Spirit .. only sin that's unforgiveable!

God hates ALL sin equally. Blasphemy is just the only sin that's unforgivable.

yes, it is. but sadly most christians don't realize that they are committing idolatry. It is by far the most popular sin among God's people.

The one most sin is that if you say bad at holy ghost (spirit). If you do- it will not be forgiven according to some religions.

Yeah, people will take celebrities over God. Some people will take video games over God. Idols today have come in different forms.

the worst sin is taking a life and after that is being impure and committing adultery....