Sometimes we want to make the gospel complicated because we have worked so hard. We don’t want it to be easy for newcomers. We have fasted. We have fought the flesh. We have prayed all night. I did it, so you must do it.
But Paul (who did more than any of us) exhorts us to keep it simple. The gospel is simple: Believe in Jesus and be saved. But I fear, lest by any means, as the serpent beguiled Eve through his subtlety, so your minds should be corrupted from the SIMPLICITY that is in Christ. — 2 Cor. 11:3 KJV (caps mine).
Romans 10:9 similarly makes it simple: If you declare with your mouth, “Jesus is Lord,” and believe in your heart that God raised him from the dead, you will be saved (NIV).
It was the Pharisees and Jewish leaders who added rule upon rule, making it harder to get into Heaven. Considering they ultimately rejected Christ, I don’t think it’s a good idea to be like them. Some of us are going to be very surprised to see lots of people in Heaven, people we thought wouldn’t make it because they didn’t follow all our rules.
Simplicity is beautiful. Let’s not deprive the gospel of its beauty.