Your sentence would look better, though, if you capitalized I.
oh yes. thanks
You're welcome.
Amy I was 5 years old about to be 6 when you asked that question, now I am 18. Jesus Saved me by His Grace. And I love Him, time goes by, and people change, but God is the same one from yesterday, today, and tomorrow. Have a blessing life in Christ. Come to him
Yes, the first sentence "If I believe in Jesus Christ, I will be saved" has the correct use of a comma. In this case, the comma is used to separate the dependent clause "If I believe in Jesus Christ" from the independent clause "I will be saved." The dependent clause introduces the condition, and the independent clause states the result.