I read God's Word as OSAS. I think that Ro 8 last half pretty well sums it up. The problem I see with teaching a Christian that they can or have lost their salvation is that they are teaching that Jesus' love/forgiveness is conditional which it can't be (for by grace through faith are we saved and not works/while we were yet sinners, Christ died for us.) Agape love, Christ's love, is unconditional. Instilling the conditional situation can make one's Christian experience so oppressive and depressive that it is understandable to see such emotional outbursts in the churches which teach this handicapping idea. Such an ideology can inhibit or even eradicate what one would have otherwise done for the Lord with their life had they believed that they were still saved and loved forgiven by the Father.
Christ's love is not the issue.
He will love you whether you turn from him or not.
Jesus forgiveness is based on your faith.
You are saved by grace... through faith.
19 Brethren, if anyone among you
wanders from the truth, and someone turns him back, 20 let him know that
he who turns a sinner from the error of his way will save a soul from death and cover a multitude of sins.
James 5:19
and again -
19 Now the works of the flesh are evident, which are: adultery, fornication, uncleanness, lewdness, 20 idolatry, sorcery, hatred, contentions, jealousies, outbursts of wrath, selfish ambitions, dissensions, heresies, 21 envy, murders, drunkenness, revelries, and the like; of which I tell you beforehand, just as I also told you in time past,
that those who practice such things will not inherit the kingdom of God. Galatians 5:19-21
One would have to ignore what the scriptures actually say, to believe OSAS.
Ignoring the truth is the first step in wandering from the truth...
JLB