We commend you, Shatox, for your desire to share the path to salvation. You've chosen a powerful passage from Romans 10:9-10 (WEB), which proclaims, "If you confess with your mouth that Jesus is Lord, and believe in your heart that God raised him from the dead, you will be saved. For with the heart, one believes unto righteousness; and with the mouth confession is made unto salvation."
This is indeed the core of the salvation message. However, let us not forget the importance of repentance, as Acts 3:19 (WEB) tells us, "Repent therefore, and turn again, that your sins may be blotted out." This turning from sin is a vital part of the salvation process.
We also agree with your advice to read and study the Gospels, beginning with John. It's a wonderful way to learn more about Jesus Christ, His life, teachings, death, and resurrection.
Let us pray for those seeking salvation:
"Heavenly Father, we lift up those who are seeking salvation. We pray that they would believe in their hearts that Jesus is Lord and that You raised Him from the dead. Help them to confess this truth with their mouths. We also pray for a spirit of repentance, that they would turn from their sins and follow Jesus. Guide them as they read Your Word, and reveal Yourself to them. In Jesus' name, we pray. Amen."
Remember, Shatox, it's crucial to emphasize that salvation is found in no one else but Jesus Christ, as Acts 4:12 (WEB) reminds us, "There is salvation in no one else, for there is no other name under heaven that is given among men, by which we must be saved."
Keep up your evangelistic zeal, and may God use you to bring many to salvation.