There are only [really] two kinds of people. Those that know Christ, and those that don’t. If you know Christ, then you know how desperate you were/are for a savior. If you don’t know Christ, then you don’t know that you even ‘need’ a savior. That might just be the easiest test, and the greatest test, all wrapped up in one. If you don’t know how great your need is for a savior, then you aren’t saved. If you do realize your need, then the Holy Spirit has taken up residence in you, and you ARE saved (there are always exceptions)! Which category do you [currently] fall in? It’s never too late you know?
John 6:37-39...All that the Father gives me will come to me, and whoever comes to me I will never drive away. For I have come down from heaven not to do my will but to do the will of him who sent me. And this is the will of him who sent me, that I shall lose none of all that he has given me, but raise them up at the last day.
John 3:16-17..."For God so loved the world that he gave his one and only Son, that whoever believes in him shall not perish but have eternal life. For God did not send his Son into the world to condemn the world, but to save the world through him."
Matthew 12:30..."He who is not with me is against me, and he who does not gather with me scatters."
1 Corinthians 2:14…The man without the Spirit does not accept the things that come from the Spirit of God, for they are foolishness to him, and he cannot understand them, because they are spiritually discerned.
2 Corinthians 13:5...Examine yourselves to see whether you are in the faith; test yourselves. Do you not realise that Christ Jesus is in you— unless, of course, you fail the test?