They, whom God hath accepted in his Beloved, effectually called, and sanctified by his Spirit, can neither totally nor finally fall from the state of grace, but shall certainly persevere therein to the end, and be eternally saved. (XVII.1) The doctrine declares that the regenerate are saved through persevering in faith and Christian living to the end (Heb. 3:6; 6:11; 10:35–39), and that it is God who keeps them persevering.
That does not mean that all who ever professed conversion will be saved. False professions are made; short-term enthusiasts fall away (Matt. 13:20–22); many who say to Jesus, “Lord, Lord,” will not be acknowledged (Matt. 7:21–23). Only those who show themselves to be regenerate by pursuing heart-holiness and true neighbor-love as they pass through this world are entitled to believe themselves secure in Christ. Persevering in faith and penitence, not just in Christian formalism, is the path to glory.
To suppose that believing in perseverance leads to careless living and arrogant presumption is a total misconception. Sometimes the regenerate backslide and fall into gross sin. But in this they act out of character, do violence to their own new nature, and make themselves deeply miserable, so that eventually they seek and find restoration to righteousness. In retrospect, their lapse seems to them to have been madness.
When regenerate believers act in character, they manifest a humble, grateful desire to please the God who saved them; and the knowledge that he is pledged to keep them safe forever simply increases this desire.
From Brother Ross: How does one know that they are a true believer and follower of Jesus? The answer is simple, by obeying the commands written in the Bible, trusting God through the Spirit in you, surrendering more each day to Jesus, making every attempt to be at peace with all people, having a personal relationship with Jesus, imitating the life of Jesus, praying and being patient until Jesus comes back for you.
It seems like a lot and it is if you decide to do this by yourself. To make it easier, align yourself with like minded people. This does not mean that you should not have friends that do not know Jesus. If that were the case, how would we preach or share the gospel?
Jesus came for the lost sheep of Israel. He dined with Matthew the Tax Collector, ate with the Pharisees, saved Mary Magdalene and she became one of his closest followers. This life is not about us (believers In Christ). We have already entered eternal life and now await our Masters return. Our mission is to carry on the work of Jesus and continue to spread the life and times of Jesus (Gospel) to the rest of the world.
Keeping it 100%