i have arab frnd she is syrian n she is christian ok, n have english friend who is muslim,, ok? understand no?
Christianity and Islam are beliefs, Christianity is based on the teachings of Christ and the Israeli prophets who came before Him. And Islam is based on the teachings of Muhammad. They are something that you chose to put your faith into.
Arabs are a group of people who come from the Arab culture (no idea how to explain it, apparently its not technically a race) and English is a nationality and language, Im guessing youre talking about an English speaking friend.
We are talking about religion, faiths that people take up themselves. Not about race or nationality or any of these things.
You cannot believe in Christ and Muhammad. Muslims say they believe in Jesus, yeah. But not the Jesus that was recorded by His followers who were with Him in Israel, but by a man from Saudi Arabia who talked of a different man he called Jesus several hundreds of years later. And the two do not match. Christians believe in Christ's crucifixion and resurrection, as recorded by His followers who died for this belief.
They believed He was the one prophecised by the prophets of Israel, the One who would be called God, who would rule over the world from Israel. The one who will come down to the world to save Israel and bring judgement down on the earth. Islam claims He was just a prophet of Allah, a god who is not entirely similar with the God of the bible already.