viewed in isolation, 1 john 5:13 can be interpreted to support the osas position.
viewed in the larger context of 1 john, it cannot.
thus in the second chapter of 1 john we read:
We know that we have come to know Him IF we obey His commands. The man who says, “I know Him,” but does not do what He commands is a liar, and the truth is not in him.
do you believe in the name of the Son of God, but fail to keep His commandments?
then you don’t know Him – you only perhaps think you do (cf.
matthew 7:23).
the same point is reiterated in the third chapter:
This is how we know who the children of God are and who the children of the devil are: Anyone who does not do what is right is not a child of God; nor is anyone who does not love his brother.
1 john 3:10 niv
right belief absent right action is not salvific. or, to put it another way, if you do not “do what is right,” whatever “belief” you may have in the Son of God falls short of salvific belief.
returning now to 1 john 5:13, with this context in place, we see that the text is aimed at “you who *believe *in the name of the Son of God”.
“
believe” = present participle, which expresses continuous or repeated action.
thus, 1 john 5:13 refers *only *to those who have a present-tense belief in Jesus, and such belief is
only salvific if one
obeys Jesus’s commands, and
does what is right – and *only so long as *one obeys those commands, and continues to do what is right.
john is not talking about mere “head” belief, or even mere “heart” belief. and he is certainly not talking about mere past belief (e.g., that altar call i made on november 7, 1997).
1 john 5:13 applies only to an active, present-tense belief, which is defined as a continuous right belief accompanied by right action, as provided by 1 john 2:3-4 and 1 john 3:10.
such belief is salvific – but it is only salvific so long as it is continued. that is, only so long as such belief is expressed in continuous or repeated action.