1 John 5:9-13

New Living Translation

9 Since we believe human testimony, surely we can believe the greater testimony that comes from God. And God has testified about his Son. 10 All who believe in the Son of God know in their hearts that this testimony is true. Those who don’t believe this are actually calling God a liar because they don’t believe what God has testified about his Son.
11 And this is what God has testified: He has given us eternal life, and this life is in his Son. 12 Whoever has the Son has life; whoever does not have God’s Son does not have life.

Conclusion

13 I have written this to you who believe in the name of the Son of God, so that you may know you have eternal life.