Once Saved Always Saved?

There are three doctrines prevalent among Christian believers that are totally destructive of God’s purposes in the Lord Jesus Christ:
Divine grace viewed as an alternative to the desired change in our behavior.
We are saved by “faith alone,” that is, independently of our behavior. This is a non sequitur, in that salvation is our change from wicked, self-centered behavior to righteous, God-centered behavior.
The idea that once we “accept Christ” we never can lose our salvation.
These three doctrines are related in that they all view our salvation as a sovereignly dictated means of granting people eternal residence in Heaven apart from a change of personality.
There are other destructive doctrines, such as the any-moment catching up (rapture) of the believers to Heaven in order to escape Antichrist and the Great Tribulation; the notion that after the death of the early Apostles, God ceased intervening in the lives of the believers with speaking in tongues, Divine healing, the gifts of apostles and prophets, and individual direction.
All of these I have just mentioned rob the Christian people of the joy and fruitfulness they should be experiencing. But the first three prevent our growth into the image of God in righteous behavior and holiness of personality. Also they prevent us from understanding the necessity for stern obedience to the Lord Jesus Christ.