Let's post the scriptures so that we can all study this together:
Ephesians 1v13
[SUP]13 [/SUP]In Him you also
trusted, after you heard the word of truth, the gospel of your salvation; in whom also,
having believed, you were sealed with the Holy Spirit of promise, [SUP]14 [/SUP]who[SUP][
b][/SUP] is the guarantee of our inheritance until the redemption of the purchased possession, to the praise of His glory.
You see the above? Having believed, we have the guarantee.
Now let me ask you - should this condition not be met (as we can see in Hebrews 6 and Hebrews 10, 2 Peter 2v20,21 etc etc) and this believer falls into unbelief? Should this believer be dragged into heaven kicking and screaming?
Let's use an analogy. Let's say you buy a washing machine withe a lifetime guarantee by the manufacturer. Should anything break-down the manufacturer will fix the washine machine, free of charge. However there are conditions attached to the guarantee. It says that the owner of the washine machine should not try open up the backboard and try fix and replace components or touch the electricals, etc. Should the owner do this, the guarantee becomes void. This is part of the sale contract.
In a similar vein, the guarantee of the inheritance comes with the condition of
Belief. You would not argue with the statement if I said, "Unless you believe, you cannot receive the Holy Spirit and you cannot inherit eternal life". That's a truthful statement.
Now, what about a believer falling away (as we can see from multiple scriptures), and then falls into unbelief? Like the washine machine which was tampered with, the guarantee is void. Because the condition of the contract was belief (Ephesians 1v13)
We can see this guarantee restated AGAIN in Colossians 1v21-23
Colossians 1
[SUP]21 [/SUP]And you, who once were alienated and enemies in your mind by wicked works, yet now He has reconciled [SUP]22 [/SUP]in the body of His flesh through death, to present you holy, and blameless, and above reproach in His sight— [SUP]23 [/SUP]
if indeed you continue in the faith, grounded and steadfast, and are
not moved away from the hope of the gospel which you heard, which was preached to every creature under heaven, of which I, Paul, became a minister.
You see. The guarantee is in place. However unbelief makes it of no effect.
Try looking at Colossians 1v23 above and ask yourself - what happens if a believer DOESN'T continue in the faith. Someone who IS MOVED from the hope of the gospel. Will verse 21 still hold?