I think so. In our passage, john 5:24 Jesus says that "he who hears my message and believes in the one who sent me has ζωὴν αἰώνιον (life eternal),
The Greek word is an Adjective, Accusative, Female, singular, of αἰώνιος, which indicates something that lasts for an age, as distinguished from ἀίδιος (everlasting), Jude 1:6, which indicates something that never ends. While the term αἰώνιος doesn't necessarily indicate something that is everlasting, it speaks about something that is permanent. Outside of a religious context, it might be said that a "Supreme Court Justice holds his office perpetually and permanently for the rest of his life." God tells Israel that an adopted son remains a son in the household, perpetually, for his entire life.
In our text, Jesus combines both ideas, speaking of life that lasts for an age, while at the same time, speaking of the resurrection of the dead. From his examples, we know which age Jesus has in view. In this instance, the age in view is the coming age. He who hears his message and believes in the one who sent him, has life in the coming age. He has the eternal age permanently,
Early in my Bible study I tended to see and evaluate the conditional statements in isolation, but now I try to see how Jesus and the apostles use conditional statements in a larger context to support a larger issue.
Regarding 1 John 2:3-4, I should expect this statement to be part of a larger argument and evaluate it accordingly.
Perhaps you might have noticed that the apostle narrows his focus down to "my little children." After a closer examination of his letter and his use of that phrase, it seems that John has addressed his letter to a second generation of believers, who might be the kids of the early believers and as such, were not eyewitnesses to Jesus' original teaching. They are getting it secondhand from others, perhaps their parents. John is writing to them in particular to clear things up.
He sets out to contrast himself, an eyewitness to what Jesus actually taught, 1 John 1:1-2, with those who claim to have "known" him. 1 John 2:3-6 To that end, John's statements are not necessarily about believers who have fallen away; some of them might be, but John's statements are about interlopers who claim to have known Jesus, but speak falsely about what Jesus taught.
John's conditional statements act as "givens," establishing certain ideas as facts. Paraphrasing 1 John 2:3-6, John seems to be saying something like this: Given that those who know Him keep His commandments, what can we conclude? "The one who says, 'I have come to know Him,' and does not keep His commandments, is a liar, and the truth is not in him." New believers should not trust those who claim to have known Jesus but do not teach what Jesus taught. Trust John, who was an eyewitness to Jesus' teachings and speaks truthfully about them.
The same can be said to new believers today, don't listen to voices claiming to know what Jesus taught, who don't live or believe what Jesus taught.
