Can a person loose their Salvation?
2 Peter 2:20-22 says, "For if after they have escaped the defilements of the world by the knowledge of the Lord and Savior Jesus Christ, they are again entangled in them and are overcome, the last state has become worse for them than the first. For it would have been better for them not to have known the way of righteousness, than having known it, to turn away from the holy commandment delivered to them..." My friend, once again after seeing this verse, proclaimed that it meant one who heard the word but rejected it and was never saved. Closer examination of the scripture will prove this false. It starts off by saying that they have "escaped the defilements of the world by the knowledge of...Jesus." To escape the world by Jesus can mean nothing but that they were saved. Then it goes on to say that "they are again entangled in them and are overcome" which means that they have gone back into the world. It finally says that "the last state has become worse for them than the first." The first state is before you're a Christian when you're lost so for the last state to be worse, it must mean that they are no longer saved and fallen from grace.
Christ spewed the Laodiceans out of His mouth for being lukewarm. Remember that a church is all the Christians or the saved. Revelation 3:14, 16 says "And to the angel of the church in Laodicea write... because you are lukewarm, and neither cold nor hot; I will spit you out of my mouth." The church (saved) were spit out of Christ's mouth." Paul writes in James 5:19-20, "My brethren, if any among you strays from the truth, and one turns him back, let him know that he who turns a sinner from the error of his way will save his soul from death, and will cover a multitude of sins." Paul identifies them as his brethren (Christians) and then says that if they stray from the truth and are turned back that their soul will be saved from death.
These are just some of the many, many scriptures teaching that a child of God can fall away from God so as to be eternally lost. Remember that man is saved by grace (Ephesians 2:8), a Christian can fall away from grace (Galations 5:4), and therefore, a Christian may be lost. On a last side note, my friend on the valley team admitted I was right and that he had just believed what he had been taught all his life and had never seen those scriptures.
"Beware of false prophets, who come to you in sheep's clothing, but inwardly are ravenous wolves." (Matthew 7:15)