You can't get saved more than once...
Romans 11:20-23 (KJV)
20 Well; because of unbelief they were broken off, and thou standest by faith. Be not highminded, but fear:
21 For if God spared not the natural branches, take heed lest he also spare not thee.
22 Behold therefore the goodness and severity of God: on them which fell, severity; but toward thee, goodness, if thou continue in his goodness: otherwise thou also shalt be cut off.
23 And they also, if they abide not still in unbelief, shall be graffed in: for God is able to graff them in again.
James 5:19-20 (KJV)
19 Brethren, if any of you do err from the truth, and one convert him;
20 Let him know, that he which converteth the sinner from the error of his way shall save a soul from death, and shall hide a multitude of sins.
Things we learn from the above Scriptures:
1. It is possible for brethren or Christians to err from the truth and become unconverted (v. 19; note, Lk. 22:32).
2. An erring Christian can be converted again (vv. 19-20; note, Lk. 22:32).
3. An erring Christian becomes a sinner again, if he sins (v. 20; Rom. 6:14-23).
4. An erring Christian incurs the death penalty again when he sins (v. 20; Ezek. 18:24; Rom. 8:12-13; Gal. 5:19-21).
5. If the erring Christian is saved from his error, his soul will be saved again from death (v. 20; 1Jn. 1:9; 1Jn. 5:16; Rev. 2:5).
6. If he repents and is saved again from death, his sins will be forgiven and hidden (v. 20; 1Jn. 1:9; Rev. 2:5).
7. If he does not repent, he will be lost and will have to pay the penalty for sin (v. 20; Rom. 6:14-23; 8:12-13; 2Tim. 2:12; Ezek. 18:24; Heb. 6:4-6, notes; 10:26-29, notes; 2Pet. 2:20-21).
Dake's Annotated Reference Bible.