OK, atheist, you’ve convinced me, Allah, Muhammad, Islam and the Koran are false, so how do I become a Christian?
Leave Islam, and simply pray:
Act of Contrition
O my God,
Act of Contrition
I am heartily sorry for having offended you,
and I detest all my sins because of your just punishments,
but most of all because they offend you, my God,
who are all good and deserving of all my love.
I firmly resolve, with the help of your grace,
to sin no more
and to avoid the near occasions of sin.
Amen.
Or:
O my God,
Act of Contrition
I am sorry and repent with all my heart
for all the wrong I have done
and for the good I have failed to do,
because by sinning I have offended you,
who are all good and worthy to be loved above all things.
I firmly resolve, with the help of your grace,
to do penance,
to sin no more,
and to avoid the occasions of sin.
Through the merits of the Passion of our Savior Jesus Christ,
Lord, have mercy.
Sinner’s Prayers:
Dear Lord Jesus, I know that I am a sinner, and I ask for Your forgiveness. I believe You died for my sins and rose from the dead. I turn from my sins and invite You to come into my heart and life. I want to trust and follow You as my Lord and Savior. In Your Name. Amen.
Billy Graham
Lord Jesus, I need You. Thank You for dying on the cross for my sins. I open the door of my life and receive You as my Savior and Lord. Thank You for forgiving my sins and giving me eternal life. Take control of the throne of my life. Make me the kind of person You want me to be.
Cru
God our Father, I believe that out of Your infinite love You have created me. In a thousand ways I have shunned Your love. I repent of each and every one of my sins. Please forgive me. Thank You for sending Your Son to die for me, to save me from eternal death. I choose this day to enter into (renew my) covenant with You and to place Jesus at the center of my heart. I surrender to Him as Lord over my whole life. I ask You now to flood my soul with the gift of the Holy Spirit so that my life may be transformed. Give me the grace and courage to live as a disciple in Your Church for the rest of my days. In Jesus name I pray Amen.
St. Paul Street Evangelization
Note that you do not have to say or pray all of them; just one you like is sufficient. Note that these prayers are not magic spells. They simply change you, your mind.

But, atheist, why aren’t you a Christian? You’re preaching Christianity? That’s because Christianity has positive benefits for people in practical ways:
- A feeling of security, love, acceptance, and removal of fear of death.
- Virtue ethics and moral code from Jesus: love one another.
- Interacts well with and produces Western civilisation.
- If you see, feel, hear or have God/Jesus/Holy Spirit.
- If you have a soul.
Additionally, Christianity satisfies a desire to know the origins of everything and life, as well as the end of life and everything, producing a sense of certainty in life that is more reassuring.
As a Christian, you’ll need a Bible. Pick one that’s easy for you to read and understand:

Note that more challenging to comprehend is to the left, and more accessible or easier to read is to the right.
Before buying one, check out various versions available online at Bible Gateway to see which is right for you.
As an atheist, I disagree with these assertions about the start and end of everything and life, preferring what science has discovered. However, being an atheist and developing a moral code is hard. You essentially end up with a secular Christianity as a virtue morality base, followed by Humanism, Transhumanism and more, to be compatible with Western civilisation. This is easier to accomplish as a Christian. For more, read Tiered Moral Systems.
Atheist, I really think that Christianity is not for me. Then find out: How to be an atheist.
