All through the Bible there are many scriptures that provide one with information on ones salvation and how it can and will be obtained. Everyone on the face of this Earth will have the opportunity to be in Gods Kingdom. Everyone will be given that opportunity in there own order. In other words, those mentioned in Scripture such as Moses, David and others had their time to be called then. Down through time others had their time to be called and chosen to be in the Resurrection.
One can be lost but only if they do not have Gods Holy Spirit living within them. Once an individual accepts Jesus Christ as his or her personal savior, they then obtain the ingredient to inherit Eternal Life. Jesus made the statement that " if it were possible the Elect, His chosen, would be deceived". But it will not be possible because they would have His Holy Spirit and it will guide them in the Truth. Knowing the Truth they can not and will not be deceived. Can one loose out on Salvation? Yes, but only by not accepting Jesus Christ.
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