That's a weird tortured sentence. “You may die today” might be a better, more direct way to say it.
And why the comic book image of death? Seems to trivialize the issue.
So where does the scripture teach “getting to Heaven?”
For such a common emphasis, you would expect it to be all over the scriptures. I’m happy to be proven wrong, but I don’t think you will find that in the teaching or preaching of Jesus or the New Testament church.
The closest thing to it that I have ever found is John 14:1-6, 18-20, 28
vv.1-6
“Do not let your heart be troubled; believe in God, believe also in Me. In My Father’s house are many dwelling places; if it were not so, I would have told you; for I go to prepare a place for you. If I go and prepare a place for you, I will come again and receive you to Myself, that where I am, there you may be also. And you know the way where I am going.” Thomas said to Him, “Lord, we do not know where You are going, how do we know the way?” Jesus said to him, “I am the way, and the truth, and the life; no one comes to the Father but through Me.
vv. 18-20
“I will not leave you as orphans; I will come to you. After a little while the world will no longer see Me, but you will see Me; because I live, you will live also. In that day you will know that I am in My Father, and you in Me, and I in you.
v. 28
You heard that I said to you, ‘I go away, and I will come to you.’ If you loved Me, you would have rejoiced because I go to the Father, for the Father is greater than I.
Heaven is presented in the scripture as the dwelling place of God. After the return of Christ, we see the resurrection of all humanity, the final judgment of the dead according to their deeds, the destruction of evil persons, death and Hades (see Revelation 20:12-15). Then in Revelation 21, we see heaven and earth reunited, where God lives among his people (Revelation 21:3).
The words of Jesus in John 14 lend themselves perfectly to the scenario outlined in Revelation, not the simple “getting to Heaven” teaching of so many sermons and tracts.
Are those who have died before the return of Jesus somehow alive and conscious in Christ?
Yes, I think we can show evidence of that, but this unbiblical terminology of “going/getting to Heaven” needs to stop because it gives the impression that the message of Jesus is primarily about one’s location after physical death. Jesus summarized His message as “Repent, for the Kingdom of God is at hand,” and I think we should stick with His teaching.
This is teaching regarding a theory of atonement, predicated on the idea that “getting to Heaven” was the primary message of Jesus and the New Testament church. It wasn’t.
This is good advice, but it doesn’t explain very well how one enters into a life of faith. For instance, there is no call to repent or to die to oneself (aka "take up one's cross") and follow Jesus.
I like the idea of encouraging people to read the Bible, but they are going to be confused for a while since the main thrust of this tract cannot be found in this form in the scriptures. The “obey what you read” advice does not do justice to all of the various types of writing and the stories told in the scriptures. Not everyone written about in scripture is a good guy and that’s not always explicitly pointed out.
However, these last two sentences are the strongest part of the tract, but it seems that there should be given some space to the teachings of Jesus, beyond a simple reference to Matthew 5:28 and assertions about Him.
This is neither "excellent" nor a balanced recounting of the gospel that Jesus and the New Testament church preached.