Question:
When you become saved, are you always saved? Is there anything you can do to become lost?

Answer:
Jesus said: “My sheep hear my voice, and I know them, and they follow Me: and I give unto them eternal life; and they shall never perish, neither shall any man pluck them out of My hand. My Father, which gave them Me, is greater than all; and no man is able to pluck them out of My Father’s hand. I and my Father are one” (John 10:27-30).

The moment we are saved we are given eternal life. People think of eternal life as being out in the future—when you die; but you get eternal life the moment you are saved and you have it from then on. “He that…believeth on Him…hath everlasting life” (John 5:24).
“For by grace are ye saved through faith; and that not of yourselves: it is the gift of God: Not of works, lest any man should boast” (Ephesians 2:8, 9). We are saved by grace through faith, and not of any works of our own. Some people think that if they get saved, they have to do good to keep themselves saved. If works cannot get you saved, how can they keep you saved? They cannot.
“For I am persuaded, that neither death, nor life, nor angels, nor principalities, nor powers, nor things present, nor things to come, nor height, nor depth, nor any other creature, shall be able to separate us from the love of God, which is in Christ Jesus our Lord” (Romans 8:38, 39).
If we are saved, we cannot separate ourselves from the love of God. The blood of Christ cleanses from all sin (1 John 1:7). God’s Word in Romans 8:28-30 gives us security. “And we know that all things work together for good to them that love God, to them who are the called according to His purpose. For whom he did foreknow, he also did predestinate to be conformed to the image of his Son, that he might be the firstborn among many brethren.” So His blood makes us safe, and His Word makes us sure.