When it comes to the topic of if a Christian can fall from God’s grace, the “once saved, always saved” people bring up the sheep example. Very oddly, they miss something.
Jesus said, “28 and I give eternal life to them, and they will never perish; and no one will snatch them out of My hand. 29 “My Father, who has given them to Me, is greater than all; and no one is able to snatch them out of the Father’s hand.” John 10:28f. Jesus also said earlier, “11 I am the good shepherd; the good shepherd lays down His life for the sheep. 12 “He who is a hired hand, and not a shepherd, who is not the owner of the sheep, sees the wolf coming, and leaves the sheep and flees, and the wolf snatches them and scatters them. 13 “He flees because he is a hired hand and is not concerned about the sheep. 14 “I am the good shepherd, and I know My own and My own know Me,” John 10:11ff.
What do the Calvinistic “perseverence of the saints” folks miss in these verses?
What they miss is two things, 1] the wolves can and are destroying sheep, and 2] sheep sometimes stray from the good shepherd. The prodigal son had a good father and yet he was able to leave. While we faithful have great security in Christ, when we are weak in faith and when we listen to the false teachers, we can be led astray and lose our salvation.
Romans 8:37-39 is a good passage to show that external things cannot separate us from the love of God. That equates with great security for our salvation in Christ. So don’t lose heart. But a rebellious Christian can depart from God. As sheep sometimes go astray from the flock, so Christians can quit listening to the voice of the great Shepherd and go the path of destruction. Said in love, Dan