First John 5:13 is likely the most important verse in the entire epistle, for it is John’s summary statement as to the central purpose for it. He had other reasons (see Part 1 and Part II on our podcast), but his ultimate objective  is that every true believer be confident is his or her salvation.

Assurance of salvation is for the here and now; it is not something only attained when we leave this world and then find out we made it! Faith is not something we are always hoping to grasp "enough of" in order to “make it” in the end.  We can have confident faith right now. Hebrews 11:1 – “Faith is the assurance of things hoped for, the evidence of things not seen”.  As God’s children, we are to know we have been saved. The word know means absolute assurance. The words “know, knoweth, or known” appear 38 times in this short epistle.

Can a believer really know the joy (abundant life) of the Lord without being perfectly certain he has eternal life – and cannot ever lose it?  Not really, for it is to live in doubt and even fear. As the Puritan Thomas Brooks wrote, “Assurance is the believer’s ark where he sits, Noah-like, quiet and still in the midst of all distractions and destructions, commotions and confusions . . .”  Isaiah 32:17 tells us that where God imputes righteousness in a believer, the effect of that righteousness is peace (“quietness”) “and assurance forever”.

There is no reason for a genuine believer to be on his way to Heaven in a kind of mist – hoping he or something or someone else doesn’t cause “the ark” to sink into the judgment waters of God’s wrath! The ark is Christ! If you entered it, He closed the door – and what He closes is secure and no one can open! He is the Good Shepherd Who promised “He that cometh to Me, I shall in no wise cast out”.

IMPORTANT STUDY! We examine many reasons for why believers doubt their salvation - including the fact that many have been wrongly taught that they can lose it!  Many many passages of Scripture teach the exact opposite and we look at a lot of them!