How can you have eternal life?

God empowers you to choose His solution to your spiritual problem.

Believe in Jesus.
John 5:24 "I tell you truth, whoever hears my word and believes him who sent me has eternal life and will not be condemned; he has crossed over from dead to life" (John 5:24)

Repent of your sin.
Mark 1:14 "The time has come," he said, "The kingdom of God is near, Repent and believe the good news!" (Mark1:14)

Wholeheartedly believe that the blood of Jesus Christ which was shed on the Cross provides forgiveness of your sin.
Ephesians 1:7 "In him we have redeption through his blood, the forgiveness of sins, in accordance with the riches of God's grace that he lavished on us wit all wisdom and understanding." (Ephesians 1:7)

and likewise believe that God raised Jesus from the dead so that you might walk in newness of life.
Romans 10:9 "That if you confess with your mouth, "Jesus is Lord; and believe in your heart that God raised him from the dead, you will be saved." (Romans 10:9)

Sincerely receive the Lord Jesus Christ into your life (John 1:12) and as a new creation (2Corintians 5:17), live in faithful and loving obedience to God's word (1John 2:3-6)

"Yet to all who received him, to those who believed in his name, he gave the right to become children of God (John 1:12)"
"Therefore, if anyone is in Christ, he is a new creation, the old has gone, the new has come! (2Corinthians 5:17)"
"We know that we have come to know him if we obey his commands. The man who says, "I know him", but does not do waht he commandes  is a liar, and the truth is not in him. But if anyone obeys his word, God's lo9ve is truly made complete in him. This is how we know we are in him; whoever claims to live in him must walk as Jesus Christ did (1John 2:3-6)"