First verse: Not a verse about eternal life. It is a verse about the Mosaic Covenant and the Kingdom being restored to Israel if they repent.
Mark 1:14-15
Now after John was arrested, Jesus came into Galilee, proclaiming the gospel of God, and saying, “The time is fulfilled, and the kingdom of God is at hand; repent and believe in the gospel.”
Also, the verses below are not eternal salvation verses. They are, like Mark 1, about Israel and repentance to establish Mosaic Covenant relationship.
(sbg, you really don't understand God as a covenant making God with a covenant people.)
Luke 13:1-5
There were some present at that very time who told him about the Galileans whose blood Pilate had mingled with their sacrifices. And he answered them, “Do you think that these Galileans were worse sinners than all the other Galileans, because they suffered in this way? No, I tell you; but unless you repent, you will all likewise perish. Or those eighteen on whom the tower in Siloam fell and killed them: do you think that they were worse offenders than all the others who lived in Jerusalem? No, I tell you; but unless you repent, you will all likewise perish.”
I am sure you will now react with some big bold letters declaring myself and all others to be wrong and only you to be correct.
In the first place, there is zero NT evidence that says that the Gospel that was preached to the Jews under the Old Covenant, that included "repentance and faith", together, was changed when it was offered to the Gentiles.
In the second place, Jesus commanded at the close of His earthly Ministry, that, " and that repentance for forgiveness of sins would be proclaimed in His name to all the nations, beginning from Jerusalem" (Luke 24:47). This is under the New Covenant, as Jesus had already Risen.
In the third place, on the Day of Pentecost, which is the New Covenant, Peter speaking by the authority of the Holy Spirit, is clear when those who were "convicted" by his Message, and asked, "what must we DO", to which Peter replies, "REPENT...FOR THE FORGIVENESS OF YOUR SINS". Showing that REPENTANCE is not simply a change of mind towards God and Jesus Christ, but also includes personal sins.
Peter here says what Jesus does in Luke 24:47. Are you saying that Jesus and Peter are both wrong, and your theology is right?
In the fourth place, in 2 Corinthians 7:10, in regard to salvation, Paul says;
"For
godly sorrow produces repentance leading to salvation, not to be regretted; but the sorrow of the world produces death"
Is Paul wrong here to say that the sinner must have "godly sorrow that produces repentance leading to salvation"?
Notice the order here. 1. godly sorrow; 2. produces repentance; 2. that leads to salvation. It is very clear, that true repentance is essential BEFORE a sinner can be saved.
This is what the Bible says.