What do I need to know to share Jesus with others?

You need to know the Gospel of Jesus Christ (the good news):

1. All mankind has a sin problem. (See Romans 3:23.)
2. God’s punishment for sin is eternal condemnation. (See Romans 6:23.)
3. God sent His Son, Jesus, to Earth to
   1. live a perfect life--so His sacrifice would be acceptable,
   2. die as a sacrifice for each of us, and
   3. be raised back to life--to prove His sacrifice was accepted by God. (See Romans 5:8.)
4. God did all this for us because of His love for us and wants to remove our condemnation based on His Son’s sacrifice for us. (See Romans 8:1.)
5. Each of us must make a personal decision to repent of our sins and surrender our lives to Jesus. This “change of direction in our lives” is the provision that applies God's forgiveness to our lives. (See Romans 10:9, 13.)

You need to know your own experience:

Write out your own story (testimony) so you can be comfortable telling it to others. It is your story, not someone else’s.

You need to know your assignment:

Acts 1:8 tells us: “But you shall receive power when the Holy Spirit has come upon you; and you shall be witnesses to Me in Jerusalem, and in all Judea and Samaria, and to the end of the earth.” Witnessing is our assignment. We don’t have to wonder what God wants us to do. We’re to be witnesses.

God didn’t say, “You shall be my lawyer.” What’s the difference between a witness and a lawyer? A lawyer argues a case; a witness tells what he has seen and heard. That’s the reason you need to know your testimony. A witness doesn’t have to know the answer to everything. All you need to know is what have you seen and what you have heard.